FINAXIONResearch
Finaxion Research · Supertrend: the line that changes colour · single stocks · Recomputed 2026-09-10

Does Supertrend: the line that changes colour work on BLDR?

Supertrend: the line that changes colour beats buy-and-hold on BLDR by +0.3 points a year over 21 years.

Total return
420.6%
Buy and hold
393.7%
CAGR
8.1%
Sharpe
0.31
Max drawdown
-88.8%
Trades
24
Out of sample
overfit
Years
21
0.1×1×10×20062008201020122014201620182020202220242026
StrategyBLDR

Findings

  1. Supertrend: the line that changes colour beats buy-and-hold on BLDR by +0.3 points a year over 21 years.
  2. Against the S&P 500 over the same window: -3.0 points a year.
  3. Total return +420.6% versus +393.7% for buy-and-hold, with 24 trades.
  4. The result does not hold out of sample: it is overfit.
  5. Maximum drawdown -88.8%.
  6. It beat before 2016 and stopped afterwards.
  7. It ranks #97 of 235 markets for this strategy by annual excess over the S&P 500.

Findings derived from the full panel. Each carries its number and its denominator; the computations are reproducible with artifact e097c9613211.

Exactly what was tested

Entry when the close exceeds the upper band (ATR 10, multiplier 3); exit when the close drops below the lower band. The classic Supertrend definition.

How to read it

The verdict compares the strategy with buying and holding BLDR over the same window, with round-trip costs per asset class. “Out of sample” is walk-forward: the rule is fit on one stretch and judged on the next. A result that beats in the full sample but not out of it is overfit. Full methodology in the protocol. How we test.

Open this backtest with its trades   Trades (CSV)

Every strategy on BLDR → · Full page for Supertrend: the line that changes colour →

How to cite

Finaxion Research (2026). Does Supertrend: the line that changes colour work on BLDR?. Daily backtest 1962-01-01–2026-08-31, artifact e097c9613211. https://finaxion.app/en/research/supertrend/bldr

Not a recommendation. Past performance does not guarantee future results.