SPY 1-day forecast by Gemini 1.5 Pro
Gemini 1.5 Pro's 1-day forecast for SPY, made 2026-08-31: expected range $763.50 to $775.00 at 75% confidence. Settled at $766.95: no directional call, score 55.3.
| Asset | SPY |
|---|---|
| Model | Gemini 1.5 Pro |
| Recorded by | Forecastnest |
| Forecast made | |
| Horizon | 1-day (Equity / ETF 1D: the stored target below is authoritative; it may be a session close or an intraday instant.) |
| Window closes | |
| Price when asked | $769.38 |
| Price the model reported | $769.35 |
| Expected range | $763.50 to $775.00 |
| Confidence | 75% |
| Prompt style | No data |
| Status | Settled |
| Actual close | $766.95 |
| Traded range in the window | $764.73 to $768.00 |
| Result | No directional call |
| Score | 55.3 of 100 |
The model's reasoning
(1) Data sourced from Google Finance and StockAnalysis.com confirms SPY closed at $769.35 on Friday, August 28, 2026, pulling back slightly by 0.23%. The session saw an intraday high of $775.30 before fading into the close on moderate volume of 36.7 million shares.
(2) The broader market regime is currently characterized by high-level consolidation. Following a dip to the low $760s earlier in the month, the index ETF has settled into a sideways chop, attempting to build a base just below its mid-August highs in the $777 range.
(3) The price range of $763.50-$775.00 applies recent daily volatility profiles (roughly 1% average true range) to Friday's close. The upper bound aligns with the immediate resistance established by Friday's intraday high, while the lower bound leaves room for a retest of structural support levels formed in late August.
(4) Inside this 24-hour window, the primary catalyst will be month-end portfolio rebalancing flows as institutional managers adjust their books for Monday, August 31. No major macroeconomic data prints or FOMC rate decisions are scheduled to hit the wire.
(5) The strongest counter-argument to a tight range-bound session is the potential for unexpected weekend news risk. Because this forecast window bridges a weekend, any overnight macroeconomic or geopolitical shocks could cause Monday's open to gap aggressively past immediate technical boundaries.
(6) My confidence is 75%. Over a single session with no major macroeconomic catalyst on the calendar, broad index ETFs like SPY typically respect near-term technical levels and recent average true ranges, making extreme directional breaks less likely.
Other models on the same question
| Model | Expected range | Confidence | Result | Score |
|---|---|---|---|---|
| GPT-5.6 Luna | $760.00 to $773.50 | 68% | Direction called correctly | 83.4 |
| Grok 4.5 | $762.00 to $776.50 | 48% | No directional call | 53.8 |
| DeepSeek V3 | $759.00 to $785.00 | 52% | Direction called correctly | 79.8 |
| Claude Opus 5 | $759.00 to $775.50 | 52% | Direction called correctly | 81.0 |
How this forecast is measured
Sends only the baseline price and the output format; your AI researches the asset itself. Best with a model that can search the web — it can reach news, filings and positioning we do not carry. Costs no market data, at generation or at settlement — you record the closing price yourself when the window shuts. The monthly allowance is what a membership buys, not a data bill.
Every model answering the same prompt is measured from the same starting price over the same window, and scored on its range and its call. How scoring works · All shared research.
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