Sanfew serum(4)
P2PBuy limit: 2,000·last trade 2m ago
Confidence
Confidence73%
One score blending fill chance, market volume and profit quality.
Fill chance73%
Volume78%
Profit70%
Suggested prices
ConservativeSafe fillsBigger margins
Buy at19,146
Buy fills67%
Sell at19,615
Sell fills79%
Net / item77 (0.4%)
Est. profit / 4h40.2K
522 units · 73% fill confidence
Insta-sell
19,145
cheapest buy (full spread)
Insta-buy
19,616
dearest sell (full spread)
Gross margin
471
GE tax
392
2% per item, max 5M
Net margin
79
0.4% ROI
Volatility
2.8%
price noise (1h history)
How to flip the Sanfew serum(4)
The Sanfew serum(4) is a members-only Old School RuneScape item — “A 4 dose Sanfew Serum.”. Its Grand Exchange buy limit is 2,000 per 4 hours. Right now it buys at 19,145 gp and sells at 19,616 gp — a net margin of 79 gp (0.4% ROI) after the 2% Grand Exchange tax of 392 gp. High alchemy yields 180 gp.
To flip it, place a buy offer near 19,145 gp and a sell offer near 19,616 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 volume88%
Two-sided liquidity9%
Recent activity98%
Size vs market68%
Why this profit score
Spread persistence81%
No price spike88%
Margin plausibility100%