

You'll need something to break through that shell.
Rainbow crab (3) has a wide margin right now: instant buys at 1,991 gp against instant sells at 909 gp, 119% apart. After the 2% Grand Exchange tax, the margin leaves 1,043 gp profit per item. Its trades are too few, or too recent, to show which way its price is moving. About 4 units traded in the last day. It has no published buy limit. None traded in the last hour. It belongs to none of GrandExchanger's sectors. It is a members-only item. Game facts on the OSRS Wiki

0 buy · 1 sell · 0 neutral
No clear momentum direction.
Within normal trading range.
Above VWAP: trading above the average. A possible time to take profit.
Momentum is neutral.
Low volatility: the price is fairly stable.
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