Sinister key
P2PBuy limit: 11,000·last trade 12m ago
Confidence
Confidence55%
One score blending fill chance, market volume and profit quality.
Fill chance39%
Volume45%
Profit85%
Suggested prices
ConservativeSafe fillsBigger margins
Buy at22,201
Buy fills12%
Sell at23,089
Sell fills57%
Net / item427 (1.9%)
Est. profit / 4h192.2K
450 units · 39% fill confidence
Insta-sell
22,200
cheapest buy (full spread)
Insta-buy
23,090
dearest sell (full spread)
Gross margin
890
GE tax
461
2% per item, max 5M
Net margin
429
1.9% ROI
Volatility
3.1%
price noise (1h history)
How to flip the Sinister key
The Sinister key is a members-only Old School RuneScape item — “You get a sense of dread from this key.”. Its Grand Exchange buy limit is 11,000 per 4 hours. Right now it buys at 22,200 gp and sells at 23,090 gp — a net margin of 429 gp (1.9% ROI) after the 2% Grand Exchange tax of 461 gp. High alchemy yields 48 gp.
To flip it, place a buy offer near 22,200 gp and a sell offer near 23,090 gp; the spread minus GE tax is your profit. Confidence figures are model estimates from live OSRS Wiki prices, not guarantees — flip responsibly.
Price history
● insta-buy● insta-sell● moving avg
Why this fill score
Trading volume51%
Two-sided liquidity1%
Recent activity91%
Size vs market1%
Why this profit score
Spread persistence100%
No price spike100%
Margin plausibility100%