Strategies · on Gecko’s tip list

Big Up DayTechnicalSwing

A 15%+ jump in a day · hold 20 days

Today: Tip generation. Gecko raises tips from this strategy and tests them on a paper (pretend-money) account. Strategies loop back from paper trading to be refined, dropped or replaced - only those that pass every check reach live trading.

Buys shares the day after they jump 15% or more, betting the rise carries on for the next few weeks.

The idea

A jump of 15% or more in one day usually follows real news - results, a trading update, a bid. The price doesn’t take the news in all at once: after very large jumps the shares have kept drifting higher for weeks, whatever the announcement said.

Which shares

Gecko’s original 115 stocks. It also held up on 143 FTSE 350 stocks it wasn’t developed on.

When it buys

A share closes at least 15% higher than the day before.
Buy at the next morning’s open.

When it sells

Sell at the close 20 trading days later.
Protective stop: 2.5 times the share’s average daily range below the signal day.

How often it tips

6%of trading days bring a tip

0.3tips a week on average - at least one in 24% of weeks

1.3tips a month on average

24tips in the backtest’s last 12 months

Counted from the backtest’s trades, 2016-2026, on the shares above. A few more tips arrive than trades: a signal on a share already held is still sent, marked as skipped.

Results so far

£1.84won for every £1 lost

161trades, 2016-2026

48%of trades won

+0.38Raverage per trade, in units of the amount risked

Backtest #387 - CFDs on a £10,000 account risking 2% a trade, with commission and financing, before bid-ask spreads.

Forward testing: Rules frozen 8 October 2026 - forward tracking counts every signal since.
Paper trading: Paper orders are placed on a click. No closed paper trades yet.
Live trading: Not live.

Worth knowing

The 15% threshold was compared with 10% on the full period, so the choice is slightly flattered.

An AI read 10,000 company statements (the price-only follow-through) →