Guam tar

Members

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Guam tar trades around 43 gp now, +85.2% this week, 7-day range 2–25.

Lowlast instant sell

25

Highlast instant buy

61

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

Flip margin: +35; per item, after 1 tax
Flip profit / 4h: 21,630; Buy 618 · spend 15,450 (10% vol)
Buy limit: 7,000; per 4 hours
Traded, 24h: 32,995; both sides
Reliability: —
High alch: 1; shop value 3

How these numbers work

Sell offer (last insta-buy)61

Buy offer (last insta-sell)− 25

GE tax, 2% capped at 5m− 1

Net margin per item+35

Breakeven sell price≥ 26

Potential profit, one 4h window

Buy limit7,000

10% of 4h volume618

10m bankroll ÷ buy400,000

Quantity (the lowest)× 618

Spend15,450

Potential profit21,630

All ammunition →Top flips →

About Guam tar on the GE

“A thick, foul-smelling, tar-like substance with a green tinge.”

Guam tar last traded at 61 gp (insta-buy) and 25 gp (insta-sell) on the Grand Exchange. After the GE tax on a sale, that leaves a margin of 35 gp per item. 32,995 were traded in the last 24 hours. It is a members' item.

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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 6,190 items (1,547/hr, pace over the last 2 hours). Sized to a 10m bankroll; set yours on the home page.

Last 7 days

+85.2% vs 7 days ago

Avg / day: 121,778
7d low: 2 gp
7d high: 25 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

60 gp

Guam tar price history

All-time high: 72 gp; 28 Mar 2015
All-time low: 1 gp; 9 Jul 2015
30 days: flat
90 days: +9.1%
1 year: +100.0%

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

7Nov 25
6Dec 25
10Jan 26
11Feb 26
13Mar 26
13Apr 26
11May 26
12Jun 26
11Jul 26
12Aug 26
14Sept 26
12Oct 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 61 gp costs 1 gp in tax (2% of the sale price, rounded down, capped at 5m gp). Tax-exempt items →

Guam tar on the OSRS Wiki ↗

Guam tar FAQ

How much is Guam tar worth?

Guam tar last sold for 25 gp (instant sell) and was last bought for 61 gp (instant buy) on the Grand Exchange.

What is the Guam tar buy limit?

You can buy 7,000 Guam tar every 4 hours. The 4 hours start from your first purchase, and only buying counts towards the limit.

Is Guam tar worth high alching?

High alchemy turns Guam tar into 1 gp. Buying one at 61 gp and casting with a nature rune at 138 gp costs 199 gp. That is a loss of 198 gp per cast at the latest prices, so it is not worth alching for profit right now.

Is Guam tar tax-exempt?

No. Selling one at 61 gp costs 1 gp in tax (2% of the sale price, rounded down, capped at 5m gp).

What was Guam tar's highest price?

The highest daily guide price on record for Guam tar is 72 gp, on 28 Mar 2015. The lowest is 1 gp, on 9 Jul 2015.

Related items

About Guam tar on the GE

Last 7 days

Guam tar price history

Guam tar FAQ