Black knife
P2PBuy limit: 7,000·last trade 4m ago
Confidence
Confidence63%
One score blending fill chance, market volume and profit quality.
Fill chance80%
Volume88%
Profit44%
Suggested prices
ConservativeSafe fillsBigger margins
Buy at26
Buy fills40%
Sell at28
Sell fills44%
Net / item2 (7.7%)
Est. profit / 4h14.0K
7,000 units · 80% fill confidence
Insta-sell
25
cheapest buy (full spread)
Insta-buy
29
dearest sell (full spread)
Gross margin
4
GE tax
0
2% per item, max 5M
Net margin
4
16.0% ROI
Volatility
18.5%
price noise (1h history)
How to flip the Black knife
The Black knife is a members-only Old School RuneScape item — “A finely balanced throwing knife.”. Its Grand Exchange buy limit is 7,000 per 4 hours. Right now it buys at 25 gp and sells at 29 gp — a net margin of 4 gp (16.0% ROI) after the 2% Grand Exchange tax. High alchemy yields 11 gp.
To flip it, place a buy offer near 25 gp and a sell offer near 29 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 volume99%
Two-sided liquidity39%
Recent activity97%
Size vs market60%
Why this profit score
Spread persistence50%
No price spike29%
Margin plausibility100%