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Guam potion (unf) trades around 363 gp now, +45.3% this week, 7-day range 220–370.
Flippers place a buy offer near the low and sell near the high.
“I need another ingredient to finish this Guam potion.”
Guam potion (unf) last traded at 363 gp (insta-buy) and 363 gp (insta-sell) on the Grand Exchange. Selling one at 363 gp costs 7 gp in GE tax, leaving a margin of -7 gp per item. 94,500 were traded in the last 24 hours. The buy limit is 10,000 every 4 hours. It is a members' item.
Hourly mid price, the average of the buy and sell prices. Volume counts both sides.
| Month | Close |
|---|---|
| Oct 2026 | 363 gp |
| Sept 2026 | 363 gp |
| Aug 2026 | 355 gp |
| Jul 2026 | 428 gp |
| Jun 2026 | 466 gp |
| May 2026 | 464 gp |
| Apr 2026 | 370 gp |
| Mar 2026 | 446 gp |
| Feb 2026 | 514 gp |
| Jan 2026 | 319 gp |
| Dec 2025 | 445 gp |
| Nov 2025 | 526 gp |
Daily GE guide prices from 28 Mar 2015 to 11 Oct 2026, from the OSRS Wiki. Data as of 11 Oct 2026.
High alch: 1 gp − 363 gp to buy − 138 gp nature rune = -500 gp per cast. Best items to alch →
Tax: Selling one at 363 gp costs 7 gp in tax (2% of the sale price, rounded down, capped at 5m gp). Tax-exempt items →