Harpoon
F2PBuy limit: 40·last trade just now
Confidence
Confidence32%
One score blending fill chance, market volume and profit quality.
Fill chance46%
Volume44%
Profit19%
Suggested prices
ConservativeSafe fillsBigger margins
Buy at189
Buy fills24%
Sell at305
Sell fills59%
Net / item110 (58.2%)
Est. profit / 4h4.4K
40 units · 46% fill confidence
Insta-sell
188
cheapest buy (full spread)
Insta-buy
306
dearest sell (full spread)
Gross margin
118
GE tax
6
2% per item, max 5M
Net margin
112
59.6% ROI
Volatility
52.1%
price noise (1h history)
How to flip the Harpoon
The Harpoon is a free-to-play Old School RuneScape item — “Useful for catching really big fish.”. Its Grand Exchange buy limit is 40 per 4 hours. Right now it buys at 188 gp and sells at 306 gp — a net margin of 112 gp (59.6% ROI) after the 2% Grand Exchange tax of 6 gp. High alchemy yields 3 gp.
To flip it, place a buy offer near 188 gp and a sell offer near 306 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 volume49%
Two-sided liquidity3%
Recent activity100%
Size vs market25%
Why this profit score
Spread persistence1%
No price spike42%
Margin plausibility58%