Mackerel

Some nicely cooked mackerel. Mackerel is a members-only item traded on the Old School RuneScape Grand Exchange.

At just 8 gp, Mackerel is among the lowest-priced tradeable items — volume is everything at this price point.

At just 10 trades recently, Mackerel is thinly traded — expect wide spreads and be prepared to wait for fills. With a buy limit of 6,000 every 4 hours, you can trade in large quantities per session. At the current margin, flipping the full buy limit yields up to 144,000 gp profit every 4 hours.

Mackerel currently has a positive margin of 24 gp after the GE tax, resulting in an ROI of 300.0%. At 6/10, Mackerel sits in the middle of the pack — worth flipping if you have capital to spare but not a top-priority target.

Mackerel has a high alchemy value of 9 gp, but at the current buy price it is not profitable to alch.

Price has been stable over the last hour (0.0% change), which generally makes for more predictable fills.

With a tight spread, instant buy-and-sell is a viable approach for Mackerel. Undercutting the instant buy by a small amount (1 GP to a few hundred GP) is usually enough to get priority in the queue. Volume is relatively low, so expect fills to take longer — set your offers and check back rather than watching the screen. Avoid over-committing capital to a single slot with this item.

Track margins and find profitable trades with the Flip Finder. Use the High Alch Calculator to check whether this item is worth alching as an alternative exit strategy.

Use the flip calculator above to estimate your profit based on quantity. Set a price alert to get notified when the margin changes, or add this item to your watchlist for quick access.