Shock S&P 500

2011 US debt downgrade sell-off

After a contentious debt-ceiling fight, S&P cut the US sovereign credit rating in August while the euro-zone debt crisis deepened. US stocks slid from their July high and bottomed in early October.

Dates checked against the price data: researched window 2011-07-22 to 2011-10-03; measured 2011-07-07 to 2011-10-03 (start shifted by -15 days, end by +0 days).

Market move-18.4%2011-07-07 to 2011-10-03
Window61 trading days
Back at the prior peak85 trading daysafter the trough, on 2012-02-03
Next 3 months+16.7%63 trading days after the end
Strategies lost less91%51 / 56
Already out going in45%25 / 56

Price around the event

80%87%94%101%108%2011-052011-062011-072011-082011-092011-102011-112011-122012-012012-022012-03
S&P 500 · window start = 100%; shaded = event window; from 60 trading days before to 120 after

How the strategies did

Of 56 rule-based strategies with a curve on S&P 500, 25 (45%) were already out of the market going in. 51 (91%) lost less than the market (-18.4%), 6 (11%) finished the window with a gain, and the median strategy returned -5.5%. Strategies that were in the market returned a median -9.0%; those that were already out returned -2.6%. In the following three months the median strategy returned +1.8%.

FamilyStrategiesAlready outMedian returnLost less than the market
Trend2425%-5.4%88%
Momentum40%-12.9%75%
Mean reversion14100%-4.6%100%
Volatility633%-4.6%100%
Regime & other838%-8.4%88%

56 of 72 strategies have a curve on S&P 500. Portfolio, basket and multi-asset strategies without one are excluded.

All strategies on S&P 500

StrategyFamilyReturn in windowIn the market going in?Max drawdown in windowNext 3 months
TREND-16 Aroon IndicatorTrend+5.7%Out-1.1%-1.1%
MOM-06 Residual MomentumMomentum+5.3%In-2.9%+3.2%
MR-16 Connors RSIMean reversion+4.2%Out-3.9%+4.3%
MR-14 Detrended Price OscillatorMean reversion+3.3%Out-3.6%+2.8%
TREND-14 Linear Regression ChannelTrend+0.9%In-7.5%-8.1%
MR-01 RSI Mean ReversionMean reversion+0.3%Out-6.6%+2.7%
ADX-01 ADX Trend FilterTrend0.0%Out0.0%0.0%
COMBO-01 Bollinger-Keltner SqueezeVolatility0.0%Out0.0%+3.1%
COMBO-03 Divergence StrategyRegime & other0.0%Out0.0%0.0%
MR-07 Hurst-Filtered Mean ReversionMean reversion0.0%Out0.0%+6.0%
MR-13 TRIX ReversionMean reversion0.0%Out0.0%0.0%
SEAS-01 Monthly SeasonalityRegime & other0.0%Out0.0%+5.2%
TREND-02 Donchian BreakoutTrend0.0%Out0.0%-1.6%
TREND-19 Elder Triple ScreenTrend0.0%Out0.0%0.0%
VOL-01 Volatility BreakoutVolatility-2.6%Out-4.5%+5.9%
SUPER-01 SupertrendTrend-2.9%In-2.9%+2.7%
KC-01 Keltner Channel BreakoutTrend-3.3%In-3.3%-5.1%
MR-12 Money Flow Index ReversionMean reversion-3.3%Out-6.7%+7.2%
TURTLE-01 Turtle TradingTrend-3.5%In-3.5%+0.5%
COMBO-04 Trend + Mean Reversion HybridTrend-3.9%Out-3.9%0.0%
MR-04 Ornstein-Uhlenbeck Mean ReversionMean reversion-4.3%Out-4.8%0.0%
TREND-15 Darvas BoxTrend-4.5%In-4.5%-1.6%
MOM-10 Accelerating MomentumTrend-4.6%In-4.6%-5.8%
VOL-13 Volatility Regime StrategyVolatility-4.6%In-9.3%+0.3%
REG-14 Volatility Regime SwitchVolatility-4.6%In-4.6%-2.6%
MR-10 Stochastic Oscillator ReversionMean reversion-5.0%Out-14.0%+14.9%
EVENT-01 Trend + Macro FilterTrend-5.3%Out-11.2%0.0%
TREND-10 Ichimoku CloudTrend-5.4%In-5.4%-0.1%
RISK-03 Stop Loss OverlayRegime & other-5.6%In-5.6%+0.3%
MR-11 Williams %R ReversionMean reversion-5.6%Out-14.0%+15.0%
TREND-20 Vortex IndicatorTrend-5.9%In-8.1%+3.4%
MR-06 Z-Score Mean ReversionMean reversion-5.9%Out-11.0%+4.4%
MR-02 Bollinger Band ReversionMean reversion-5.9%Out-11.0%+13.6%
MR-15 Ultimate OscillatorMean reversion-7.1%Out-12.8%+4.9%
REG-01 Regime SwitchRegime & other-7.3%In-7.3%0.0%
TREND-12 MACD StrategyTrend-8.7%In-8.7%+5.5%
COMBO-02 MACD + RSI FilterMomentum-8.7%In-8.7%+5.5%
MR-03 Kalman Filter Mean ReversionMean reversion-8.8%Out-11.0%+8.8%
RISK-04 Trailing Stop StrategyTrend-9.0%In-10.0%+1.5%
TAIL-01 Crisis AlphaRegime & other-9.4%Out-9.4%-6.5%
TREND-18 Coppock CurveTrend-10.5%In-10.5%+2.6%
RP-01 Volatility TargetVolatility-10.8%In-10.8%+5.9%
VOL-10 Volatility Risk PremiumVolatility-10.9%In-10.9%+0.8%
TREND-05 Dual Moving AverageTrend-11.6%In-17.1%0.0%
TREND-17 Chandelier ExitTrend-12.8%In-13.9%+3.2%
REG-10 HMM Regime DetectionRegime & other-12.9%In-13.5%+4.8%
TREND-13 Triple Moving AverageTrend-13.8%In-17.1%0.0%
MR-05 CCI Mean ReversionMean reversion-13.8%Out-18.2%+8.7%
CAL-01 Turn of MonthRegime & other-15.2%In-15.2%+11.4%
MOM-03 52-Week High MomentumMomentum-17.1%In-17.1%-0.2%
TREND-11 Kaufman Adaptive Moving AverageTrend-17.8%In-17.8%-0.3%
MOM-01 Time-Series MomentumTrend-18.4%In-18.4%+7.0%
SAR-01 Parabolic SARTrend-19.7%In-19.7%+0.2%
HMA-01 HMA CrossoverTrend-19.8%In-19.8%-1.6%
RISK-01 Drawdown ControlRegime & other-20.6%In-20.6%+12.8%
MOM-11 Momentum Crash ProtectionMomentum-20.6%In-20.6%+2.2%

Sorted by return in the window, best first. "In the market" is inferred from the equity curve (see method). Next 3 months = 63 trading days after the window end.

Other markets in the same window

MarketMoveStrategiesAhead of the marketAlready outMedian return
Gold+7.9%5645%46%+7.4%

Same calendar window as the main market. "Ahead of the market" = strategy return above the market's return over the window.

All event replays · Today's regime on S&P 500

Method: windows are snapped to the price data, returns come from the published equity curves before costs, and "already out" is inferred from the curve. See the method on the hub page. Historical, descriptive statistics before trading costs. Not a forecast and not investment advice.

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