Blue crab
P2PBuy limit: —·last trade 47m ago
Confidence
Will it fill?62%
Will it profit?89%
Joint confidence55%
Suggested prices
ConservativeSafe fillsBigger margins
Buy at186
Buy fills33%
Sell at211
Sell fills33%
Net / item21 (11.3%)
Est. profit / 4h1.40M
66,666 units · round-trip fill 11%
Insta-sell
150
cheapest buy (full spread)
Insta-buy
247
dearest sell (full spread)
Gross margin
97
GE tax
4
2% per item, max 5M
Net margin
93
62.0% ROI
Volatility
57.0%
price noise (1h history)
How to flip the Blue crab
The Blue crab is a members-only Old School RuneScape item — “You'll need something to break through that shell.”. Its Grand Exchange buy limit is effectively unlimited. Right now it buys at 150 gp and sells at 247 gp — a net margin of 93 gp (62.0% ROI) after the 2% Grand Exchange tax of 4 gp. High alchemy yields 75 gp.
To flip it, place a buy offer near 150 gp and a sell offer near 247 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 volume80%
Two-sided liquidity99%
Recent activity67%
Size vs market5%
Why this profit score
Spread persistence100%
No price spike100%
Margin plausibility54%