Brass Echo

Whale crosses 5% — then a CEO or board chair buys.

Open in Screener (Brass Echo) →🔔 Set Email Alert View 12-Month Backtest Data ↓

Whale Wake, tightened: only fires when the follow-through buy is from a CEO or board member specifically. Highest mean return of any screen at +5.3%, but with narrower ticker coverage.

How the rule fires

TR-1 'crossed above' filing in the prior 30 days · follow-up insider buy is from a CEO or Board member.

Recently Fired (Live Signals)

4 live signals in last 60 days · Refreshed 2026-10-17Open in Screener →

🇨🇭
1w ago
Infomaniak SA
Board Member (Infomaniak SA) · Board Member
€16k—
Source filing ↗
🇨🇭
1w ago
BVZ Holding AG
Board Member (BVZ Holding AG) · Board Member
€5k—
Source filing ↗
🇨🇭
1w ago
Partners Group Holding AG
Board Member (Partners Group Holding AG) · Board Member
€7.1M—
Source filing ↗
🇨🇭
1w ago
Newron Pharmaceuticals S.p.A.
Board Member (Newron Pharmaceuticals S.p.A.) · Board Member
€11k—
Source filing ↗

Historical Validation

12-Month Backtest Performance

The equity curve and statistics below show how this rule performed across our 12-month out-of-sample backtest window (May 19, 2025 – April 19, 2026). Past performance is not indicative of future results.

Window: 2025-05-19 → 2026-04-19

Mean return @ 30d

+5.2%

Hit rate

57%

Trades scored

100

Unique tickers

Worst single loss

-17%

Signals / month

7.5

What €1,000 per signal would have done

Cumulative P&L

+€5,250

+5.2% mean per signal · 100 trades

Hypothetical, frictionless. €1,000staked the moment each signal fired, closed at the screen's default horizon. No trading costs, no slippage, no taxes. Backtest window 2025-05-19 → 2026-04-19.

12-Month Out-of-Sample Backtest Trades

Historical trades captured during the May 2025 – April 2026 backtest window to validate signal efficacy.

100 signals · 30-day horizon · €1,000 notional

Filing date		Company	Insider	Value	Horizon	Raw return	€ P&L
2026-04-17	🇨🇭	Barry Callebaut AG $BARN	Board Member (Barry Callebaut AG) Board Member	€139k	30d	+11.2%	+€112
2026-04-15	🇨🇭	Partners Group Holding AG $PGHN	Board Member (Partners Group Holding AG) Board Member	€1.2M	30d	-3.1%	−€31
2026-04-02	🇨🇭	Partners Group Holding AG $PGHN	Board Member (Partners Group Holding AG) Board Member	€1.1M	30d	+0.4%	+€4
2026-04-02	🇨🇭	Partners Group Holding AG $PGHN	Board Member (Partners Group Holding AG) Board Member	€1.1M	30d	+0.4%	+€4
2026-04-01	🇨🇭	APG SGA SA $APGN	Board Member (APG SGA SA) Board Member	€72k	30d	-8.1%	−€81
2026-04-01	🇨🇭	Partners Group Holding AG $PGHN	Board Member (Partners Group Holding AG) Board Member	€1.1M	30d	+0.1%	+€1
2026-03-31	🇨🇭	APG SGA SA $APGN	Board Member (APG SGA SA) Board Member	€18k	30d	-7.9%	−€79
2026-03-30	🇨🇭	Galderma Group AG $GALD	Board Member (Galderma Group AG) Board Member	€2.3M	30d	+6.3%	+€63
2026-03-30	🇨🇭	APG SGA SA $APGN	Board Member (APG SGA SA) Board Member	€15k	30d	-8.5%	−€85
2026-03-27	🇨🇭	Partners Group Holding AG $PGHN	Board Member (Partners Group Holding AG) Board Member	€1.1M	30d	+9.4%	+€94

+ 90 more historical trades — sign up to see

Full ledger, CSV download, and live alerts for the brass-echo screen.

⚠️ Risks

Same CH-only data caveat as Whale Wake. DocMorris drove 52% of the result. Narrower than Whale Wake (34 unique tickers vs 48), so out-of-sample shrinkage risk is higher.

Get an email when this screen fires

Free. Each alert names the company, insider, role, and value, with a link to the source filing. We add the safety filters we have (earnings-window suppression where data exists); we never wrap any screen as a recommendation.