Sanfew serum(1)
P2PBuy limit: 2,000·last trade 15m ago
Confidence
Confidence51%
One score blending fill chance, market volume and profit quality.
Fill chance34%
Volume33%
Profit92%
Suggested prices
ConservativeSafe fillsBigger margins
Buy at4,587
Buy fills11%
Sell at5,200
Sell fills4%
Net / item509 (11.1%)
Est. profit / 4h1.02M
2,000 units · 34% fill confidence
Insta-sell
4,586
cheapest buy (full spread)
Insta-buy
5,201
dearest sell (full spread)
Gross margin
615
GE tax
104
2% per item, max 5M
Net margin
511
11.1% ROI
Volatility
7.2%
price noise (1h history)
How to flip the Sanfew serum(1)
The Sanfew serum(1) is a members-only Old School RuneScape item — “A 1 dose Sanfew Serum.”. Its Grand Exchange buy limit is 2,000 per 4 hours. Right now it buys at 4,586 gp and sells at 5,201 gp — a net margin of 511 gp (11.1% ROI) after the 2% Grand Exchange tax of 104 gp. High alchemy yields 72 gp.
To flip it, place a buy offer near 4,586 gp and a sell offer near 5,201 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 volume37%
Two-sided liquidity7%
Recent activity88%
Size vs market0%
Why this profit score
Spread persistence100%
No price spike100%
Margin plausibility100%