Alpha Report
S&P 500
Composite Signal
2022–2026

Market SectorEquity IndexModelPythia-v0.12.0SignalComposite
Date FromJan 03 2022Date ToSep 28 2026
Published Oct 13, 2026

1. Executive Summary

CategoryValue
MARKET SECTOREquity Index
SIGNALS&P 500
MODELSP500_DTC v16: composite
SIGNAL DEFINITIONSingle Contract Mid-Price Trend [Now, now + 5 min] [15:55, 16:00] ET
DATA INPUT WINDOW40 days of history, 1-minute Level II order-book bars, 09:30–16:00 ET each day
SIGNAL GENERATION WINDOWEvery 5 minutes, 09:45–15:25 ET (69 decisions per day)

Signal Coverage: S&P 500

Asset ClassTrading SymbolName
FuturesESE-mini S&P 500
FuturesMESMicro E-mini S&P 500
ETFSPYSPDR S&P 500 ETF

S&P 500 Macro Review:

  • 2022: The S&P 500 futures fell about 20% as inflation peaked and the Federal Reserve raised rates by 4.25 points from March, with the war in Ukraine adding an energy shock. The year was a textbook bear market: the high came in the first week of January and the low on 11 October, and analysts widely called it the end of the zero-rate regime.
  • 2023: The index recovered about 26%, from a January low to a late-December high, through the March regional-bank failures and a Fed that held rates at 5.25–5.50% from July. The AI-led rally in the largest technology names drove the gains, and a Q4 drop in yields on expected rate cuts pushed it back near record territory.
  • 2024: Another strong year, about +25%, with the index setting repeated all-time highs as the Fed began cutting in September and AI investment continued. The early-August volatility spike from the unwinding of the yen carry trade was brief; after the November election the index ended near its December record.
  • 2025: About +17% despite an April shock: the tariff announcements of early April drove the year's low on 8 April before a fast recovery. With the Fed cutting again from September, the index finished the year at a record high, leaving valuations near historical extremes.
  • 2026 (to 28 Sep): About +12%. The Iran conflict and the closure of the Strait of Hormuz sent oil toward $120 and the index to its 2026 low on 30 March; it then had its strongest quarter since 2020 (Q2 about +14%), led by semiconductors, and set new records in August and September before easing as Gulf tensions resurfaced.

Signal Performance Overview:

  • 2022: In a falling market the signal returned +6.4% (Sharpe 0.91) with a −4.4% maximum drawdown, trading 41% of decision slots at a 54% hit rate. Both sides contributed (long +4.8%, short +2.6%), so it profited from intraday swings rather than simply riding the decline.
  • 2023: +5.4% (Sharpe 1.22), with the highest participation (51%) and hit rate (59%) of the five years. Almost all of it came from long positions (+6.2%), in line with the year's rally.
  • 2024: The one losing year: −3.3% (Sharpe −1.17), with a hit rate below 50% (48%). The market rose steadily (+25%) but the signal's long side made nothing and its shorts lost 2.2%, so it did not follow the uptrend; the weakness was concentrated in 24Q4 (Sharpe −4.5).
  • 2025: Back to +5.4% (Sharpe 0.67), mainly from longs (+4.9%), with most of the gain in 25Q2 as it caught the rebound after the April low. It lost in 25Q4 when the market's advance slowed.
  • 2026 (F1, to 28 Sep): +3.0% (Sharpe 1.29), its best risk-adjusted year of the walk-forward, with the shallowest drawdown of the five years (−2.3%). It traded less (36% of slots), split its gains between shorts and longs, and was positive in every quarter, including the March sell-off.

2. Trading Strategy

In order to produce the metrics below we use the signal in combination with the trading strategy below:

  • Entry positions: every 5 minutes between 09:45 and 15:25 ET (69 possible openings per day) we take a long, short or no position. Each position is split into 5 parts, executed on each minute of the 5 minutes after the decision. No sizing adjustment.
  • Exit positions: each decision's position is closed between 15:55 and 16:00 ET, its five parts over the five minutes.
  • Costs: 0.50 bp per side, 1.0 bp round trip (ES). Extra exchange/clearing fees not included.
  • Contract series & roll: Front month quarterly contract (Mar, Jun, Sep, Dec). Switch at the open 5 trading days before expiration (the third Friday of the contract month): stop trading the expiring contract and start trading the next.

3. Model Training Data and Timeframe

CategoryValue
Model FamilyPythia-v0.12.0: committee of models voting per decision
VersionSP500_DTC v16
ExchangeCME Globex
DataLevel II Limit Order Book (10 levels)

Each year of Section 4 is scored by the committee of its own walk-forward fold, trained and validated only on data before that year:

YearFoldTrainingValidationVote
2026F12020-01-01 → 2024-10-032025-01-01 → 2025-12-315/5
2025F22019-01-01 → 2023-10-032024-01-01 → 2024-12-314/4
2024F32019-01-01 → 2022-10-032023-01-01 → 2023-12-316/6
2023F42018-01-01 → 2021-10-032022-01-01 → 2022-12-313/3
2022F52017-01-01 → 2020-10-032021-01-01 → 2021-12-318/8

4. Performance Metrics: walk-forward, 2022 – 2026

4.1 Return and Risk Metrics

Quarterly and annual return, risk-adjusted performance and drawdown for the trading strategy defined in Section 2. Sharpe is per session on fixed capital. 2026 runs to 2026-09-28.

Table 1: Quarterly and Annual Metrics

QuarterFoldReturn %SharpeWin %CalmarAnn. Vol %MDD %
2026F13.0151.28851.6661.7243.169-2.306
26Q3F10.9391.98655.7742.6921.931-1.392
26Q2F10.7560.91248.0461.2893.362-2.336
26Q1F11.3201.36653.1743.2074.003-1.652
2025F25.3700.67153.8760.8538.376-6.120
25Q4F2-0.727-1.60845.532-2.1601.710-1.292
25Q3F20.1490.35653.2580.6031.603-0.945
25Q2F26.1721.62962.3725.02619.394-5.291
25Q1F2-0.223-0.20550.194-0.4404.228-1.990
2024F3-3.265-1.17246.675-0.7432.645-4.276
24Q4F3-2.900-4.49634.560-2.8592.243-3.772
24Q3F30.7561.05853.5281.2952.788-2.252
24Q2F30.1770.24352.4110.3852.828-1.789
24Q1F3-1.298-1.88147.006-2.9062.638-1.752
2023F45.4471.22258.3181.4644.564-3.646
23Q4F43.1914.07063.68217.3723.437-0.758
23Q3F4-0.140-0.15953.116-0.3273.414-1.657
23Q2F42.4583.05463.0005.4583.413-1.838
23Q1F4-0.062-0.03652.861-0.0676.762-3.646
2022F56.3830.91053.2391.4197.068-4.391
22Q4F5-0.066-0.04149.349-0.0846.330-3.100
22Q3F52.1371.97659.8505.1504.409-1.633
22Q2F53.5341.51655.8164.93510.347-2.969
22Q1F50.7780.43447.3500.9037.203-3.429

Figure 1: Cumulative equity from $1,000,000, quarterly returns compounded from 22Q1 (out-of-sample)

$1,000,000 to $1,179,729 (+18.0%)

The curve compounds the quarterly returns from $1,000,000 for illustration. The strategy metrics in this report assume fixed capital, so the ending value is not the sum of the quarterly returns.

4.2 Participation, Recall and Effective Leverage

Quarterly and annual view of how often the signal trades, how many of the realised moves it captures, and how much of the notional capital is deployed on average.

Table 2: Quarterly and Annual Participation, Recall and Effective Leverage

QuarterFoldParticipation %Recall %Hit rate %Effective Leverage (x)
2026F135.7953.9953.270.195
26Q3F132.5558.1957.130.175
26Q2F148.4548.8148.990.261
26Q1F126.2557.6156.410.149
2025F241.9054.6654.960.220
25Q4F236.1144.0346.620.193
25Q3F236.1454.5754.710.188
25Q2F256.1060.5062.450.295
25Q1F239.3451.4252.140.207
2024F338.9647.6347.610.212
24Q4F341.1035.8235.690.228
24Q3F333.7356.4054.280.182
24Q2F345.0749.0953.080.241
24Q1F335.9550.7748.040.197
2023F450.8258.6758.550.266
23Q4F445.3463.7263.660.226
23Q3F443.7353.9053.910.230
23Q2F460.3964.3963.070.318
23Q1F453.7952.1952.970.290
2022F541.3352.8653.820.216
22Q4F535.7350.7950.000.188
22Q3F537.9457.1160.650.194
22Q2F549.5255.7556.260.261
22Q1F542.2148.5447.850.222
MetricDefinitionCalculation
Participation %Share of the available decision points at which the signal takes a position (long or short) rather than staying flat.(long + short decisions) / total decision points × 100; 69 decision points per trading day.
Recall %Share of the available decision points at which the signal took a position and the price moved in the direction taken.correct decisions / total decision points × 100 = Participation × Hit rate.
Hit rate %Share of the positions taken that moved in the direction taken.correct decisions / (long + short decisions) × 100.
Effective Leverage (x)Average gross notional exposure carried by the strategy relative to its capital.Time-weighted average, over the trading window (09:45–16:00 ET, first entry to last exit), of gross open notional (sum of absolute long and short positions) divided by start-of-day equity; averaged across all trading days in the period.

5. Next Steps

Download historical predictions using the Client API and confirm performance in your own test harness:

6. Contact

Please reach out with any questions or comments at: info[at]quantumsignals.ai

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