Black knife
P2PBuy limit: 7,000·last trade 17m ago
Confidence
Confidence29%
One score blending fill chance, market volume and profit quality.
Fill chance78%
Volume77%
Profit8%
Suggested prices
ConservativeSafe fillsBigger margins
Buy at37
Buy fills74%
Sell at67
Sell fills74%
Net / item29 (78.4%)
Est. profit / 4h203.0K
7,000 units · 78% fill confidence
Insta-sell
36
cheapest buy (full spread)
Insta-buy
68
dearest sell (full spread)
Gross margin
32
GE tax
1
2% per item, max 5M
Net margin
31
86.1% ROI
Volatility
14.5%
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 36 gp and sells at 68 gp — a net margin of 31 gp (86.1% ROI) after the 2% Grand Exchange tax of 1 gp. High alchemy yields 11 gp.
To flip it, place a buy offer near 36 gp and a sell offer near 68 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 volume86%
Two-sided liquidity99%
Recent activity87%
Size vs market44%
Why this profit score
Spread persistence3%
No price spike8%
Margin plausibility20%