Cosmic rune
If you bought your full buy limit on Cosmic rune right now, you'd clear roughly 18.0K GP after the 2% GE tax. That's the ceiling. The actual margin shifts every few minutes, especially after Wednesday updates and weekend supply spikes.
Used for enchant spells. Tradeable on F2P accounts too. Buy limit 18,000 per 4 hours. A 2% Grand Exchange tax applies to sales, capped at 5,000,000 GP per item.
How Cosmic rune trades on the Grand Exchange
Runes sit at the top of the daily-volume list on the Grand Exchange. Small spreads, fast fills. A very high buy limit means one full cycle can move a lot of capital, so the margin per unit does not need to be large for the flip to be worth doing. It is F2P tradeable, so both F2P and members accounts can see and trade it. Its margin has been volatile in the last hour, so treat this snapshot with extra caution and check the live numbers first.
Live flip margin
Don't miss the next move on Cosmic rune
The margin can swing 30% within an hour after an OSRS update or a weekend supply shift. Set a price alert in GE IQ and you'll get pinged the second it crosses your target, no manual checking needed.
Set up an alert for Cosmic rune →4,500+ items tracked live · 100% free · No signup
GE IQ is a single-page tool that grades every OSRS flip in real time. Built by a flipper, for flippers. Cosmic rune is one of thousands you can track, alert on, and stack in your portfolio.
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