Security book
F2PBuy limit: 15·last trade 1h ago
Confidence
Confidence0%
One score blending fill chance, market volume and profit quality.
Fill chance15%
Volume7%
Profit0%
Suggested prices
ConservativeSafe fillsBigger margins
Buy at132
Buy fills12%
Sell at88
Sell fills0%
Net / item-45 (-34.1%)
Est. profit / 4h0
15 units · 15% fill confidence
Insta-sell
132
cheapest buy (full spread)
Insta-buy
88
dearest sell (full spread)
Gross margin
-44
GE tax
1
2% per item, max 5M
Net margin
-45
-34.1% ROI
Volatility
346.6%
price noise (1h history)
How to flip the Security book
The Security book is a free-to-play Old School RuneScape item — “WARNING: Contains information which could make your account secure!”. Its Grand Exchange buy limit is 15 per 4 hours. Right now it buys at 132 gp and sells at 88 gp — a net margin of -45 gp (-34.1% ROI) after the 2% Grand Exchange tax of 1 gp. High alchemy yields 1 gp.
To flip it, place a buy offer near 132 gp and a sell offer near 88 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 volume8%
Two-sided liquidity0%
Recent activity51%
Size vs market6%
Why this profit score
Spread persistence0%
No price spike0%
Margin plausibility0%