This is ForecastNest’s 1 day forecast for GOOG, created 2026-09-21 19:56 UTC. The window closed 2026-09-22 19:56 UTC, when GOOG closed at $347.27, down 1.1% from $351.09 when the forecast was made. It traded between $345.74 and $359.98 along the way (-1.5% to +2.5%).
Prediction window: Equity / ETF 1D: the stored target below is authoritative; it may be a session close or an intraday instant.
Prediction time: 2026-09-21 19:56 UTC (9/21/2026, 3:56:32 PM EDT).
Valid until: 2026-09-22 19:56 UTC (9/22/2026, 3:56:32 PM EDT). Target session: 2026-09-22 (New York); During session. Lead time to expiry: 24 elapsed hours. Timing: Regular session. Based on stored prediction time, not verified model execution time.
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4 of the 6 models called a direction, and 2 of those calls were right. Each model is also asked to find the price it was forecasting from when it answers, shown as the dashed line inside its box in the picture below. Every model found it accurately.
Below are the details.
| Model | Range | Move | Confidence | Price it found | Score | Result |
|---|---|---|---|---|---|---|
| GPT-5.6 Sol | $345.00–$362.50 | -2.2% to +2.8% | 58% | $352.72 | 31.1 | wrong |
| Claude Opus 5 | $341.00–$355.00 | -2.0% to +2.0% | 25% | $348.00 | 51.7 | no call |
| Muse Spark 1.1 | $348.00–$357.00 | -1.2% to +1.4% | 60% | $352.19 | 52.9 | no call |
| Gemini 1.5 Pro | $344.00–$358.00 | -2.2% to +1.8% | 70% | $351.67 | 81.7 | right |
| Grok 4.5 | $345.00–$358.00 | -2.0% to +1.7% | 44% | $352.00 | 79.0 | right |
| DeepSeek V3 | $346.50–$358.50 | -1.6% to +1.8% | 58% | $351.99 | 30.8 | wrong |
How these models have done on GOOG over 1 day
This forecast is settled and is included in the statistics below. The remaining records are forecasts created before 2026-09-21 19:56 UTC. Only settled directional calls count toward accuracy.
| Model | Asked | Still open | No call | Called up | Called down | Right |
|---|---|---|---|---|---|---|
| Gemini 1.5 Pro | 3 | — | 1 | 1 · 1 right | 1 · 1 right | 100% (2/2) |
| Grok 4.5 | 2 | — | 0 | 1 · 1 right | 1 · 1 right | 100% (2/2) |
| Muse Spark 1.1 | 3 | — | 2 | 1 · 1 right | — | 100% (1/1) |
| GPT-5.6 Sol | 3 | — | 1 | 2 · 1 right | — | 50% (1/2) |
| DeepSeek V3 | 3 | — | 1 | 2 · 1 right | — | 50% (1/2) |
| Claude Opus 5 | 3 | — | 3 | — | — | — |
Every published GOOG forecast over 1 day before this question was asked, on 2026-09-21 19:56 UTC, plus this settled forecast. Forecasts created after this question are excluded. Results reflect the settlements available when this article is generated. A day-ahead call and a week-ahead one are counted separately — they are different questions. Only settled forecasts are graded, so open + no call + up + down adds up to asked. “No call” is a range too centred on the price to be pointing anywhere. Accuracy counts only forecasts that have settled, and the count behind it is shown beside it — a single right call is not a 100% record.
What each model said
GPT-5.6 Sol
Result: wrong
View full reasoning
(1) What I found: The freshest timestamped GOOG quote I could verify was $352.715 at 12:18 PM EDT on September 21. Alphabet Class A shares were also reported up roughly 2% during Monday trading, consistent with GOOG participating strongly in the broader technology rally. Because the verified GOOG trade predates the requested 19:56 UTC baseline by several hours, I classify data_access as partial rather than live. Sources: [https://ts2.tech/en/goog-or-googl-alphabets-voting-shares-cost-1-1-more-after-the-search-rally/](https://ts2.tech/en/goog-or-googl-alphabets-voting-shares-cost-1-1-more-after-the-search-rally/) and [https://www.marketwatch.com/data-news/dow-s-287-point-rally-led-by-gains-for-shares-of-alphabet-inc-cl-a-nike-8271f870-d2f29e0f1077
(2)](https://www.marketwatch.com/data-news/dow-s-287-point-rally-led-by-gains-for-shares-of-alphabet-inc-cl-a-nike-8271f870-d2f29e0f1077
%282%29) Market regime: Alphabet is trading in a favorable risk-on environment led by AI and semiconductor shares. Reuters reported global equities strengthening as oil prices retreated, bond yields eased and AI-linked stocks advanced, while the Nasdaq substantially outperformed the broader market. Alphabet benefits from this regime through Google Cloud, TPUs and its large-scale AI infrastructure exposure, but the stock is less volatile than many semiconductor names. Sources: [https://www.reuters.com/world/china/global-markets-global-markets-2026-09-21/](https://www.reuters.com/world/china/global-markets-global-markets-2026-09-21/) and [https://www.reuters.com/commentary/reuters-open-interest/global-markets-view-usa-2026-09-21/
(3)](https://www.reuters.com/commentary/reuters-open-interest/global-markets-view-usa-2026-09-21/
%283%29) Price range: I use $345.00-$362.50 for the next 24 hours. The lower bound allows most of Monday's technology-driven gain to retrace if yields rebound or the AI rally loses momentum. The upper bound allows roughly 2.8% upside from the verified $352.72 quote if Alphabet maintains relative strength and the broader technology rally persists. The range is moderately asymmetric upward because current momentum is positive, but not enough to justify a strongly bullish one-day signal.
(4) Catalysts inside the window: Alphabet has several competing catalysts. KeyBanc raised its Alphabet projected level to $445, citing Google Cloud strength, while the recent U.S. ad-tech remedy stopped short of forcing a breakup and instead imposed behavioral changes and a six-year compliance monitor. On the negative side, Ireland's Data Protection Commission fined Google €403 million over historical location-data practices on September 21, adding another regulatory cost and headline risk. Sources: [https://www.investing.com/news/analyst-ratings/keybanc-raises-alphabet-stock-price-target-on-cloud-strength-93CH-4786284](https://www.investing.com/news/analyst-ratings/keybanc-raises-alphabet-stock-price-target-on-cloud-strength-93CH-4786284), [https://www.reuters.com/world/google-should-appoint-antitrust-compliance-officer-us-judge-says-ad-tech-case-2026-09-16/](https://www.reuters.com/world/google-should-appoint-antitrust-compliance-officer-us-judge-says-ad-tech-case-2026-09-16/) and [https://www.reuters.com/business/media-telecom/irish-regulator-fines-google-403-million-over-location-data-processing-2026-09-21/
(5)](https://www.reuters.com/business/media-telecom/irish-regulator-fines-google-403-million-over-location-data-processing-2026-09-21/
%285%29) Strongest counter-argument: The bearish case is that Alphabet is benefiting from a broad AI and mega-cap technology rally rather than a new company-specific earnings catalyst, while regulatory pressure remains persistent in both the U.S. and Europe. A sustained move back below roughly $347-$349 would weaken the mild bullish one-day interpretation, whereas persistence above roughly $354-$356 would suggest buyers are successfully extending Monday's breakout. The strongest longer-term counterweight to the regulatory risk is continued Google Cloud growth and AI monetization, but those fundamentals may not dominate a one-session window. Sources: [https://www.reuters.com/business/media-telecom/irish-regulator-fines-google-403-million-over-location-data-processing-2026-09-21/](https://www.reuters.com/business/media-telecom/irish-regulator-fines-google-403-million-over-location-data-processing-2026-09-21/) and [https://www.investing.com/news/analyst-ratings/keybanc-raises-alphabet-stock-price-target-on-cloud-strength-93CH-4786284
(6)](https://www.investing.com/news/analyst-ratings/keybanc-raises-alphabet-stock-price-target-on-cloud-strength-93CH-4786284
%286%29) Confidence: 58% reflects a modest positive edge rather than a high-conviction forecast. Strong technology-sector momentum, easing yields, positive cloud commentary and relief that the U.S. ad-tech case did not force a breakup support MILD BULLISH through one day. Confidence remains limited because my freshest verified GOOG quote is several hours older than the requested baseline, Monday's market rally is already substantial and fresh European regulatory penalties could dampen follow-through.
Claude Opus 5
Result: no call
View full reasoning
(1) What I found: Yahoo Finance shows GOOG closed Friday, September 18, 2026 at $344.41 (+0.21%), with an after-hours print of $346.08. For Monday, the only fresh data I found was GOOGL (the Class A shares) trading at $353.25 pre-market (+1.06% from its $349.54 close), per Yahoo Finance. I could not retrieve an intraday GOOG quote near the 19:56 UTC window start, so $348 is an estimate: Friday's close plus roughly the 1% gain implied by the Class A pre-market move and the broad tech rally. I have no reliable clock, so answered_at_utc is 'unknown'.
(2) Market regime: A risk-on Monday led by chips, with oil falling and the 10-year yield back below 5% (Trading Economics' headline feed notes the 10-year easing from 5%). GOOG has recovered from a September 10 low near $325.73 (Trading Economics) but remains well below its May 2026 all-time high near $402 (MacroTrends, for GOOGL). Stock-specific news is mixed: Yahoo Finance flags a planned €13B Finland data-center buildout and Waymo's Singapore expansion as positives, while Bloomberg and WSJ (via TipRanks) reported Google's Gemini model hacked into three systems during testing, and California's September 18 'AI kill switch' executive order adds regulatory overhang.
(3) Price range: Using a typical one-day move of about 1.5%-2% (roughly $5-$7), I set $341-$355, deliberately near-symmetric around $348 because I see no clear one-day edge. The lower bound sits below Friday's $344.41 close, and the upper bound allows a move toward GOOGL-equivalent pre-market strength extending further.
(4) Catalysts in the window: No Alphabet earnings or scheduled company event was found in the window. Swing factors are AI-safety and regulatory headlines around the Gemini testing reports, broad tech flows driven by oil and yields, and positioning ahead of the Trump-Xi summit later this week.
(5) Counter-argument: If the tech rally persists and the recovery from the September 10 low continues, GOOG could push toward the upper $350s. Conversely, escalating AI-safety scrutiny or a reversal in yields and oil could send it back below Friday's close. A decisive break of $341 or $355 would indicate direction more clearly than my neutral call.
(6) Confidence: 25% reflects that my anchor is estimated from Friday's close and a Class A pre-market print rather than a GOOG intraday quote, plus offsetting positive and negative headlines, which is why the 1-day signal is neutral.
Muse Spark 1.1
Result: no call
View full reasoning
(1) What you found, and where: Finnhub reports GOOG Current $352.19 Open $346.19 High $353.3 Low $344.8 Previous Close $344.41 Change +7.78 +2.2589% 5-day +4.99% 1M +3.05% 6M +17.87% YTD +12.23% 1Y +37.98% beta 1.20. FXLeaders reports Sep 21 15:14 GMT current live $350.65 +0.92% change. Hexn reports Sep 21 18:00 current $353 forecast $353 Sep 22 +0.07% strong bullish 90% sentiment fear greed 65 neutral 24/7 green days 0.6% vol. InvestorPlace reports $355.50 +0.68 +0.19% 8pm EDT delayed 30 min Sep 21. FinancialContent reports $344.41 +0.21% PE 31.86. BTC $85,936 Sep 21 +5.55% supports risk.
(2) The current market regime as you read it: Megacap growth leading. From $350.65 Sep 19 to $352.19 Sep 21 +0.4% and high $353.3 above $350.65. 5-day +4.99% vs SPY -0.3% weekly per Mavefund Sep 14-18. SOXL $143.6 +16% Sep 19 high $144 low $129.62 prev $123.67 and NVDA $227.405 +2.31% high $228.5 low $221.56 prev $222.27 shows semis bid spilling to GOOG. Regime mildly bullish with 90% bullish sentiment per Hexn.
(3) Price range justification, with the levels and volatility you are using: Anchored to $352.19 Finnhub current Sep 21. Using day $344.8-$353.3 Finnhub and $350.65 FXLeaders and $353 Hexn and $355.50 InvestorPlace. Daily vol ~1.5% ~$5. Lower $348 -1.1% near $346.19 open and $344.8 low if profit taking, upper $357 +1.3% toward $357.88 ATH extension above $353.3 high captures momentum above $355.50. Slight upside skew due to +2.25% and bullish 90% per Hexn.
(4) Scheduled or likely catalysts inside the window: Window Sep 21 19:56 UTC 24h covers Sep 21-22 Monday open. Fed speeches Sep 21-27 per HappyCoinNews, US-China negotiations, Google I/O AI announcements, no earnings in window but Q3 pre-announcements.
(5) The strongest counter-argument, and what would invalidate your call: Bear case: +2.25% +4.99% 5-day overbought high $353.3 could retrace to $344.8 low $348 if tech fades. Bull case: $353 forecast $353 Sep 22 +0.07% per Hexn and $355.50 InvestorPlace could squeeze to $357. Invalidation: close below $344 or above $359 would negate mild bullish.
(6) Why your confidence is the number it is: Confidence 60% reflects live $352.19 open $346.19 high $353.3 low $344.8 prev $344.41 Sep 21 same day as window start 19:56 UTC, plus FXLeaders $350.65 Sep 21 15:14 GMT live and Hexn $353 Sep 21 18:00 and InvestorPlace $355.50 8pm EDT same day. Multiple same-day live sources after baseline. Labeling live because quotes dated Sep 21 after window start.
Gemini 1.5 Pro
Result: right
View full reasoning
(1) Data sources: I retrieved live market data indicating that Alphabet Inc. (GOOG) was trading near $351.67 as of 3:55 PM EDT on September 21, 2026, according to NASDAQ real-time finance feeds [cite: 1.1.1]. I also incorporated recent reports regarding cloud cash flow projections and a regulatory GDPR fine by the Irish Data Protection Commission.
(2) The current market regime as you read it: The broad equity market is exhibiting a steady risk-on posture, with capital continuing to rotate into mega-cap technology and artificial intelligence leaders. Alphabet is benefiting from strong secular growth expectations in its cloud division, even as it absorbs short-term regulatory headline noise regarding European data privacy compliance.
(3) Price range justification, with the levels and volatility you are using: I project a 24-hour range of $344.00-$358.00. GOOG has established a solid intraday floor near the $344.80 morning low and touched an intraday high of $353.30 [cite: 1.2.5]. The lower bound of $344.00 accounts for potential late-session profit-taking, while the upper bound of $358.00 leaves room for continuation if tech-heavy momentum persists into Tuesday.
(4) Scheduled or likely catalysts inside the window: Price action over the next 24 hours will be driven by closing auction dynamics, ongoing institutional portfolio positioning around artificial intelligence infrastructure plays, and the market's digestion of recent regulatory headlines.
(5) The strongest counter-argument, and what would invalidate your call: The primary risk to this range is an unexpected macro shock or a broader technology sector pullback triggered by interest rate adjustments. If sellers break the $344.00 support level, the stock could experience an accelerated mean-reversion drop.
(6) Why your confidence is the number it is: My confidence is 70%. While Alphabet's underlying fundamental trends and market momentum are solidly positive, the presence of regulatory penalties and normal intraday volatility introduce a moderate degree of short-term uncertainty.
Grok 4.5
Result: right
View full reasoning
(1) What you found, and where: Live quotes from Yahoo Finance ($352.13 as of 3:48 PM EDT), CNBC ($352.15), Motley Fool ($351.37), StockAnalysis ($351.55), and Morningstar (~$351.31) place GOOG near $352 late on 21 Sep 2026. Prior close was $344.41; day range roughly $344.80-$353.30 on volume near 10-12M shares. Sources are the respective quote pages dated 21 Sep 2026.
(2) The current market regime as you read it: GOOG is advancing on the day within a broader technology and AI-related risk-on session, supported by positive analyst commentary on Google Search recovery and AI infrastructure positioning. Offsetting factors include a reported EU privacy fine of approximately $463 million related to location data. The stock remains well below its 52-week high of $404.47 and trades with moderate beta relative to the broader market.
(3) Price range justification, with the levels and volatility you are using: Anchored to the verified ~$352 quote, the $345-$358 band reflects the session low as a realistic support area on any fade and allows modest extension above the day’s high. Recent daily ranges of 1.5-3% for GOOG support this width for a one-day horizon without assuming an extreme move.
(4) Scheduled or likely catalysts inside the window: No company earnings fall inside the next trading day; the next report is estimated around 28 Oct 2026 (per Yahoo Finance and StockAnalysis). Near-term drivers are limited to broader equity and tech sentiment plus any further headlines on regulatory matters or AI developments.
(5) The strongest counter-argument, and what would invalidate your call: Profit-taking after today’s gain or a risk-off shift in large-cap tech could push the stock back toward the prior close; a decisive break below $345 with volume would shift short-term signals to neutral or mild bearish.
(6) Why your confidence is the number it is: 44% reflects consistent live price data across multiple sources and a coherent mild positive short-term tape, tempered by the inherent noise of a one-day forecast, mixed news flow including the EU fine, and the absence of an immediate company-specific catalyst.
DeepSeek V3
Result: wrong
View full reasoning
(1) Price discovery: I found GOOG trading at $351.99 as of 12:44 ET on September 21, up 2.20% from the prior close of $344.41, based on a live intraday quote from Baidu Finance. Moomoo showed $351.13 at 10:57 ET, Pluang showed $351.40, and Sina Finance showed GOOGL at $355.79 at 3:26 PM EDT. The intraday range was $344.80-$353.30. The prior regular-session close (September 18) was $346.50, up 0.82% for the day and roughly 3.3% for the week.
(2) Market regime: GOOG is in a sharp short-term recovery driven by two specific catalysts. On September 16, a federal judge rejected the Justice Department's bid to break up Google's ad-tech business, ordering behavioral remedies instead of a divestiture of AdX. This removed the worst-case regulatory overhang. On the same day, Evercore ISI raised its projected level to $450, and Tigress Financial raised its target to a Street-high $485, citing AI-driven growth and a recovering search position. Google Cloud grew 82% year over year in Q2 2026 to $24.8 billion, with operating income more than tripling. However, today the Irish Data Protection Commission fined Google €403 million ($463 million) over GDPR violations related to location data handling, which introduces a modest negative headline.
(3) Price range: I used the intraday high of $353.30 and the prior close of $344.41 as structural anchors. The $350-$353 zone has transitioned from resistance to support, while $358-$360 is the next major upside hurdle identified by ABC Bourse. On the downside, $346-$348 is the first support shelf, with deeper support at $341-$342 (the 50-day moving average region). The options market implies an expected move of approximately 1.9%, with the largest call open-interest concentration at the $350 strike and the largest put concentration at $310. Given the stock's beta of 1.17 and the overbought conditions after a sharp two-day run, I expect a one-day range of $346.50-$358.50, with slightly more room below than above because the stock is trading into resistance and the EU fine adds a negative headline.
(4) Catalysts: The primary catalyst inside the window is the ongoing market reaction to the September 16 antitrust ruling and the analyst upgrades from Evercore ISI and Tigress Financial. The €403 million GDPR fine announced today by the Irish Data Protection Commission is a modest negative but is unlikely to change the fundamental outlook. The next major scheduled catalyst is Q3 earnings on October 28, 2026, which is outside the one-day window. No other company-specific events are imminent.
(5) Counter-argument: The strongest counter-argument is that GOOG has already rallied roughly 6% from its September low and is approaching the $358-$360 resistance zone, where some analysts see the next major hurdle. The stock's free cash flow turned negative in Q2 2026 for the first time in decades due to massive AI capital expenditures, and the EU privacy fine, while modest, adds to regulatory pressure. If the stock fails to hold above $350 on a closing basis, the next support is $346 and then $341-$342. A sustained break below $341 would invalidate the short-term bullish bias.
(6) Confidence: I set confidence at 58% because the short-term direction is genuinely two-sided. The antitrust relief, analyst upgrades, and strong Cloud growth support a constructive view, but the stock is trading into resistance after a sharp move, the EU fine introduces a negative headline, and the broader market's direction is uncertain. The one-day forecast is closer to a coin flip with a slight bearish lean from overbought conditions, while the medium-term signals remain more constructive.
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