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Failed test
Joovier Gems London Breakout (coded 10.5-year study)
Neither coded version made money over 10.5 years. In a challenge simulation, about 1 in 5 tries passed, and most funded accounts never got a payout.
Source Joovier GemsVideo published Aug 1, 2026
▶ Watch the videoScorecard · 10.5-year coded test (wait-for-close)Large sample · 1,310 trades
- Trades
- 1,310
- Win rate
- 35.9%
- Profit factor
- 0.92
- Reward : risk
- —
- Biggest drop
- $87,790
- Net result
- -$49,770
A dash means the video did not report that number.
The test
- How I tested
- Coded backtest
- When
- 2016-01-04 to 2026-07-14 (~10.5 years)
- Market
- NQ (Databento continuous), 1 contract, no compounding
- Trades
- See named results below
- Risk per trade
- Not said in the video
- Fees
- $2.50 per side + 1 tick adverse slippage each way
Trade log
No trade log is linked for this test.
More from the test
- Instrument
- NQ (Databento continuous), 1 contract, no compounding
- Coverage
- 2016-01-04 to 2026-07-14 (~10.5 years)
- Costs
- $2.50 per side + 1 tick adverse slippage each way
- Wait for close version
- 1,310 trades, 35.88% WR, -$49,770, PF 0.92, $87,790 max drawdown, 14-loss streak
- Enter immediately version
- 1,427 trades, 24.25% WR, -$162,375, PF 0.71, $167,020 max drawdown, 20-loss streak
- Zero fee control
- Still -$32,860 and -$143,225, so costs are not the cause
- Buy and hold benchmark
- +$506,890 over the same window
- Volatility diagnosis
- Widest-range quartile alone lost $96,915 while the calmer three quartiles made +$47,145 (Holm-adjusted p = 0.047)
- Best fix
- Skip mornings wider than the 20-day median range: 531 trades, 39.0% WR, +$28,015, PF 1.118, $13,120 max drawdown, 8 of 11 profitable years
- Statistical caveat
- 0 of 15 tested variants cleared the multiple-testing significance bar, and long/short profitability flips after the fix
- Prop lifecycle 25k
- 127 attempts, 22 passed (~1 in 6), 100 failed on max loss, 6 of 22 funded accounts ever paid, ~$6,593 total payouts
- Prop lifecycle 50k
- 72 attempts, 16 passed (~1 in 5), 5 of 16 funded accounts ever paid, ~$11,500 total payouts; every funded $50K account eventually breached max loss
A note
This uses one firm’s 2026 rules on old data. The 2025–2026 stretch was not a clean separate check.
Where the numbers come from
Checked Sep 22, 2026. These numbers come from the video. They are backtest or simulated results, not live trading, and not financial advice.
Original video ↗