Security book

F2P

Set price alert Open in terminal →

Security book trades around 160 gp now, +14900.0% this week, 7-day range 1–187.

Lowlast instant sell

120

Highlast instant buy

200

Flippers place a buy offer near the low and sell near the high.

Flip margin: +76; per item, after 4 tax
Flip profit / 4h: 836; Buy 11 · spend 1,320 (10% vol)
Buy limit: 15; per 4 hours
Traded, 24h: 668; both sides
Reliability: —
High alch: 1; shop value 2

How these numbers work

Sell offer (last insta-buy)200

Buy offer (last insta-sell)− 120

GE tax, 2% capped at 5m− 4

Net margin per item+76

Breakeven sell price≥ 123

Potential profit, one 4h window

Buy limit15

10% of 4h volume11

10m bankroll ÷ buy83,333

Quantity (the lowest)× 11

Spend1,320

Potential profit836

Top flips →

About Security book on the GE

“WARNING: Contains information which could make your account secure!”

Security book last traded at 200 gp (insta-buy) and 120 gp (insta-sell) on the Grand Exchange. After the GE tax on a sale, that leaves a margin of 76 gp per item. 668 were traded in the last 24 hours. It is available to free-to-play players.

Looking for a flip? See today's best →

Prices assume you place offers and wait for them to fill. Insta-buying and insta-selling pays the spread twice.
Selling below the breakeven price loses money, even if it is above what you paid.
4h volume is 111 items (28/hr, average over the last 24 hours). Sized to a 10m bankroll; set yours on the home page.

Last 7 days

+14900.0% vs 7 days ago

Avg / day: 1,952
7d low: 1 gp
7d high: 187 gp

Hourly mid price, the average of the buy and sell prices. Volume counts both sides.

Price & volume

When it trades

Times in UTC (game time)

Bar height is trading volumecheapestpriciest

By hour of day

By weekday

Strange fruit

562 gp

Spinach roll467 gp

Security book price history

All-time high: 101 gp; 15 Jan 2025
All-time low: 1 gp; 28 Mar 2015
30 days: flat
90 days: flat
1 year: -6.4%

Monthly close in gp (last guide price of each month)

96Nov 25
96Dec 25
96Jan 26
96Feb 26
96Mar 26
93Apr 26
89May 26
88Jun 26
88Jul 26
88Aug 26
88Sept 26
88Oct 26

Daily GE guide prices from 28 Mar 2015 to 11 Oct 2026, from the OSRS Wiki. Data as of 11 Oct 2026.

Tax: Selling one at 200 gp costs 4 gp in tax (2% of the sale price, rounded down, capped at 5m gp). Tax-exempt items →

Security book on the OSRS Wiki ↗

Security book FAQ

How much is Security book worth?

Security book last sold for 120 gp (instant sell) and was last bought for 200 gp (instant buy) on the Grand Exchange.

What is the Security book buy limit?

You can buy 15 Security book every 4 hours. The 4 hours start from your first purchase, and only buying counts towards the limit.

Is Security book worth high alching?

High alchemy turns Security book into 1 gp. Buying one at 200 gp and casting with a nature rune at 138 gp costs 338 gp. That is a loss of 337 gp per cast at the latest prices, so it is not worth alching for profit right now.

Is Security book tax-exempt?

No. Selling one at 200 gp costs 4 gp in tax (2% of the sale price, rounded down, capped at 5m gp).

What was Security book's highest price?

The highest daily guide price on record for Security book is 101 gp, on 15 Jan 2025. The lowest is 1 gp, on 28 Mar 2015.

Related items

About Security book on the GE

Last 7 days

Security book price history

Security book FAQ