Black sq shield
F2PBuy limit: 125·last trade 3m ago
Confidence
Confidence0%
One score blending fill chance, market volume and profit quality.
Fill chance34%
Volume31%
Profit0%
Suggested prices
ConservativeSafe fillsBigger margins
Buy at500
Buy fills67%
Sell at430
Sell fills0%
Net / item-78 (-15.6%)
Est. profit / 4h0
125 units · 34% fill confidence
Insta-sell
500
cheapest buy (full spread)
Insta-buy
430
dearest sell (full spread)
Gross margin
-70
GE tax
8
2% per item, max 5M
Net margin
-78
-15.6% ROI
Volatility
27.9%
price noise (1h history)
How to flip the Black sq shield
The Black sq shield is a free-to-play Old School RuneScape item — “A medium square shield.”. Its Grand Exchange buy limit is 125 per 4 hours. Right now it buys at 500 gp and sells at 430 gp — a net margin of -78 gp (-15.6% ROI) after the 2% Grand Exchange tax of 8 gp. High alchemy yields 691 gp.
To flip it, place a buy offer near 500 gp and a sell offer near 430 gp; the spread minus GE tax is your profit. Confidence figures are model estimates from live OSRS Wiki prices, not guarantees — flip responsibly.
Price history
● insta-buy● insta-sell● moving avg
Why this fill score
Trading volume35%
Two-sided liquidity0%
Recent activity98%
Size vs market1%
Why this profit score
Spread persistence0%
No price spike0%
Margin plausibility0%