50/200 SMA crosslong
Backtest Results @ SPY β€’ 10 Minutes

The Moving Average Crossover strategy uses two moving averages of different periods to generate buy and sell signals. It appoximates the idea of a trending market by using 2 SMAs, one short fast SMA(50) and another slow longer SMA(200). It buys whenever a short SMA(50) crosses up a long SMA(200), thereby implying that the direction of the market has changed. It sells once a short SMA(50) crosses down a long SMA(200). These are fairly long MAs, which means that this strategy is naturalyl meant to capture bigger moves, and thereby might not be a good fit for short time frames. But assumptions like that do not mean anything, because we've backested it! See youself.

Equity Curve

Backtest covers 12.6 months of SPY β€’ 10 Minutes (SPDR S&P 500) data, from June 28, 2024 to July 11, 2025.

Equity curve is the strategy's performance over time. You should compare it to the asset's Buy & Hold performance. In general, you want the blue area to be well above the gray area.

Drawdown is how much losses (realized or unrealized) the strategy has had if compared to the highest equity peak. Compare this to the asset's drawdown to see whether your strategy does a decent job of isolating you from downside volatility. In general, the red area must be well within the gray area.

Equity Curve
Strategy
Asset
Strategy Drawdown
Asset Drawdown

So, we have backtested 50/200 SMA cross on 12.6 months of SPY β€’ 10 Minutes candles.Β This backtest resulted in 29 positions, with the average win rate of 41% and reward-risk ratio of 1.89.Β If you assume that 1.89 reward-to-risk ratio holds, you need a minimum win rate of 34.6 to be profitable. So you're looking good so far.Β However, 29 positions is a small sample size, so take the results with a huge grain of salt.Β The key metrics are as follows:

  1. Total Return: Total Return: 6.60% vs 14.30% for the asset
  2. Max Drawdown: Max Drawdown: -13.40% vs -20.70% for the asset
  3. Exposure: Exposure: 59.90% time in the market
  4. Win Rate: Win Rate: 41.0%, vs 34.6% minimum
  5. Reward/Risk Ratio: Reward/Risk Ratio: 1.89

With that exposure in mind, you can tell that for 60% time-in-market, you get 46.15% of the asset upside potential, and 64.73% of the asset downside potential.

50/200 SMA cross: enter a position when

All of the following: # "Papa"
  10min Simple Moving Average (50, 0, close) Crosses β†— 10min Simple Moving Average (200, 0, close)

50/200 SMA cross: exit a position when

All of the following: # "India"
  10min Simple Moving Average (50, 0, close) Crosses β†˜ 10min Simple Moving Average (200, 0, close)

50/200 SMA cross @ SPY β€’ 10 Minutes (6.6%) backtest results explained by Alex C, Mike, Sarah

Alex C

Author

The backtest results show some concerning patterns for this classic SMA crossover strategy. The Win Rate of 41% with Risk/Reward of 1.89 looks mathematically viable, but I'm not convinced about its real-world applicability.

The strategy underperforms buy & hold significantly (6.6% vs 14.3%) while still exposing you to significant drawdowns (-13.4%). What worries me most is the low trading frequency - only 29 trades over 12.6 months means we don't have enough statistical significance to trust these numbers. The average trade duration of 205 candles also suggests the strategy is quite slow to react to market changes, which explains the underperformance in volatile periods.

I must say though, the risk metrics are not completely terrible - Beta of 0.34 shows good market independence, and the drawdown is better than the overall market (-13.4% vs -20.7%). But with such low Sharpe (0.36) and Sortino (0.47) ratios, I would not recommend trading this without significant modifications. Perhaps adding momentum filters or optimizing the SMA periods could improve the results, but in its current form, the strategy needs more work to be viable.

Mike

Author

Yo fam, let me break down this 50/200 SMA cross strategy on SPY! πŸš€

Looking at these numbers, it's giving me some mixed vibes tbh. The strategy's got a decent risk/reward ratio of 1.89 and that win rate leeway is absolutely bonkers at 4065% above the minimum - that's some serious cushioning! πŸ’ͺ Plus, those average wins are nearly double the size of average losses, which is pretty sweet.

But here's the thing bros - we're only catching about 46% of the market's total gains (6.6% vs 14.3% buy & hold), and that 41% win rate could definitely be better. The max drawdown of -13.4% is actually not too shabby compared to the asset's -20.7%, so we're managing risk decent enough. Market exposure at 59.9% means we're staying safe during choppy times, which I dig. πŸ„β€β™‚οΈ

Overall, this strategy isn't exactly YOLO material, but it could be a solid base to build on. Maybe add some momentum indicators or volume confirmation to boost that win rate? I'd probably throw a small portion of my Wendy's checks at this while I keep tweaking it. Just remember, past performance doesn't guarantee future tendies! πŸ—

Sarah

Author

Madre mΓ­a, this is one of the most mediocre strategies I have seen in my career! Let me tell you why this is basically throwing money into garbage.

First, your win rate is pathetic - only 41%! Even though your Risk/Reward ratio of 1.89 technically makes this mathematically viable, you're basically hoping to catch big winners while accepting frequent losses. This is mentally exhausting and most traders would break down psychologically before seeing any real profits.

The performance is embarassing - 6.6% net profit when buy & hold gave 14.3%? Β‘QuΓ© desastre! You're basically paying commission fees and spending time to make HALF of what you could make by simply buying and forgetting. The Sharpe ratio of 0.36 is terrible - you're taking on risk without adequate compensation.

The only somewhat decent thing here is your Win Rate Leeway being positive, but honestly, that's like being proud of getting a D- instead of failing completely. The strategy produces very few trades (only 29 in over a year!) which means your sample size is too small to be statistically meaningful.

Β‘Por favor! Do yourself a favor and either stick to buy & hold or develop something that actually adds value instead of destroying it. This strategy belongs in the trash bin.

Tabular metrics of 50/200 SMA cross backtested on SPY β€’ 10 Minutes

Total Trades29Net Profit6.6%Buy & Hold Profit14.3%
Win Rate41%Reward/Risk Ratio1.89Max Drawdown-13.4%
Asset Max Drawdown-20.7%Exposure59.9%Avg Candles in Position205.7
Sharpe Ratio0.36Sortino Ratio0.47Realized Volatility10.65%
Max Winning Streak2Avg Winning Streak1.3Max Losing Streak4
Avg Losing Streak2.1Avg Trades per Month4.6Avg Trades per Day0.2
Return Std Dev2.1Loss Std Dev1.2Win Std Dev1.2
Expectancy0.2Beta0.34

All backtests for 50/200 SMA cross

backtestexposurepeformance vs assetdrawdown vs assetwin%reward/risk
BTCUSDT β€’ 1 Minute
57%(5.4%/8.9%) 0.61x(-2.0%/-1.9%) 1.05x395.4
EURUSD β€’ 1 Minute
61%(-1.1%/-1.0%) 1.10x(-1.2%/-1.2%) 1.00x201.1
GLD β€’ 1 Minute
52%(1.7%/0.0%) Infinityx(-2.5%/-5.5%) 0.45x362.5
NVDA β€’ 1 Minute
61%(1.2%/16.7%) 0.07x(-7.9%/-4.4%) 1.80x282.9
SPY β€’ 1 Minute
60%(0.5%/4.6%) 0.11x(-2.5%/-2.1%) 1.19x332.3
TSLA β€’ 1 Minute
47%(6.6%/-10.3%) -0.64x(-11.2%/-21.4%) 0.52x392.1
WMT β€’ 1 Minute
41%(-0.5%/-5.4%) 0.09x(-3.9%/-6.4%) 0.61x292.4
BTCUSDT β€’ 10 Minutes
57%(18.2%/22.4%) 0.81x(-8.6%/-12.1%) 0.71x413.1
EURUSD β€’ 10 Minutes
55%(2.5%/5.8%) 0.43x(-2.2%/-4.3%) 0.51x382.4
GLD β€’ 10 Minutes
58%(26.1%/43.7%) 0.60x(-5.9%/-8.3%) 0.71x543.1
NVDA β€’ 10 Minutes
57%(5.0%/32.9%) 0.15x(-33.4%/-42.8%) 0.78x441.4
SPY β€’ 10 Minutes
60%(6.6%/14.3%) 0.46x(-13.4%/-20.7%) 0.65x411.9
TSLA β€’ 10 Minutes
47%(18.4%/59.0%) 0.31x(-34.8%/-55.3%) 0.63x411.9
WMT β€’ 10 Minutes
60%(37.4%/40.1%) 0.93x(-10.3%/-23.8%) 0.43x621.8
BTCUSDT β€’ 1 Hour
56%(36.4%/68.2%) 0.53x(-31.3%/-30.6%) 1.02x432.2
EURUSD β€’ 1 Hour
50%(6.9%/6.8%) 1.01x(-5.7%/-9.0%) 0.63x422.4
GLD β€’ 1 Hour
60%(35.8%/117.6%) 0.30x(-26.6%/-22.2%) 1.20x363.0
NVDA β€’ 1 Hour
61%(783.4%/3126.3%) 0.25x(-51.4%/-68.0%) 0.76x523.5
SPY β€’ 1 Hour
64%(85.7%/106.7%) 0.80x(-19.0%/-35.1%) 0.54x612.3
TSLA β€’ 1 Hour
55%(2930.2%/1395.5%) 2.10x(-38.7%/-75.1%) 0.52x566.0
WMT β€’ 1 Hour
60%(33.6%/138.2%) 0.24x(-28.4%/-26.9%) 1.06x501.6
BTCUSDT β€’ Daily
59%(638.7%/1337.5%) 0.48x(-61.1%/-76.6%) 0.80x837.3
EURUSD β€’ Daily
35%(4.8%/10.8%) 0.44x(-12.2%/-23.3%) 0.52x710.7
GLD β€’ Daily
61%(242.9%/595.1%) 0.41x(-36.4%/-45.3%) 0.80x466.4
NVDA β€’ Daily
65%(83183.3%/373678.5%) 0.22x(-57.1%/-90.0%) 0.63x7716.0
SPY β€’ Daily
72%(1127.3%/1316.3%) 0.86x(-32.5%/-56.7%) 0.57x873.8
TSLA β€’ Daily
57%(3139.0%/24185.2%) 0.13x(-65.4%/-75.0%) 0.87x3825.3
WMT β€’ Daily
64%(1143.9%/13022.2%) 0.09x(-57.1%/-50.6%) 1.13x398.1