Auction house flips on NA RP Blackwater

A character can use its own faction's auction house and the neutral Blackwater house of its ruleset. When the same item is cheaper in one than in the other, you can buy it there and list it in the other. These are the gaps on World of Warcraft®: Forever that were also there a day ago, biggest first. Pick another house in the menu above.

Prices from the dumps of 13 min ago (14 Nov 01:17 UTC)

Buy at Blackwater, sell on Alliance NA RP Blackwater → NA RP Alliance, 5% cut

Item	Buy	Sell	Gap after cut	To buy	Listed there
Green Hills of Stranglethorn - Page 24Buy 5s 95c, sell 11s 72c	5s 95c	11s 72c	+5s 18c87%	28	35
Raptor HideBuy 2s 30c, sell 2s 71c	2s 30c	2s 71c	+27c12%	50	168

Buy on Alliance, sell at Blackwater NA RP Alliance → NA RP Blackwater, 15% cut

Item	Buy	Sell	Gap after cut	To buy	Listed there
Khadgar's WhiskerBuy 7s 92c, sell 25s	7s 92c	25s	+13s 33c168%	789	41
Minor Mana PotionBuy 36c, sell 1s 10c	36c	1s 10c	+58c160%	83	24
Copper BarBuy 68c, sell 2s	68c	2s	+1s 2c150%	2,645	106
Green Hills of Stranglethorn - Page 18Buy 5s, sell 13s 96c	5s	13s 96c	+6s 87c137%	23	22
Copper OreBuy 64c, sell 1s 75c	64c	1s 75c	+85c132%	2,211	100
Sunscale FeatherBuy 37c, sell 1s	37c	1s	+48c130%	79	23
LiferootBuy 2s 98c, sell 8s	2s 98c	8s	+3s 82c128%	1,160	29
BruiseweedBuy 99c, sell 2s 55c	99c	2s 55c	+1s 18c119%	1,050	38
Raw Mithril Head TroutBuy 60c, sell 1s 50c	60c	1s 50c	+68c112%	818	43
Coarse Gorilla HairBuy 6s 42c, sell 15s	6s 42c	15s	+6s 33c99%	55	20
Light HideBuy 1s 75c, sell 3s 80c	1s 75c	3s 80c	+1s 48c85%	94	34
Giant EggBuy 35s, sell 74s 50c	35s	74s 50c	+28s 32c81%	311	21
Raptor FleshBuy 2s 39c, sell 4s 93c	2s 39c	4s 93c	+1s 80c75%	553	59
BriarthornBuy 1s 12c, sell 2s 28c	1s 12c	2s 28c	+82c73%	1,489	55
Heavy StoneBuy 4s 23c, sell 8s 50c	4s 23c	8s 50c	+3s71%	382	81
Mystery MeatBuy 2s 5c, sell 3s 49c	2s 5c	3s 49c	+92c45%	236	87
EarthrootBuy 60c, sell 1s	60c	1s	+25c42%	742	40
Stringy Wolf MeatBuy 88c, sell 1s 44c	88c	1s 44c	+34c39%	463	27
Green Hills of Stranglethorn - Page 26Buy 4s 78c, sell 7s	4s 78c	7s	+1s 17c24%	34	21
Bolt of MageweaveBuy 33s 99c, sell 46s	33s 99c	46s	+5s 11c15%	321	21
Green Hills of Stranglethorn - Page 11Buy 9s 80c, sell 12s 97c	9s 80c	12s 97c	+1s 22c12%	50	23

Buy at Blackwater, sell on Horde NA RP Blackwater → NA RP Horde, 5% cut

Item	Buy	Sell	Gap after cut	To buy	Listed there
Wool ClothBuy 1s 17c, sell 1s 39c	1s 17c	1s 39c	+15c13%	176	2,254

Buy on Horde, sell at Blackwater NA RP Horde → NA RP Blackwater, 15% cut

Item	Buy	Sell	Gap after cut	To buy	Listed there
Light HideBuy 1s 25c, sell 3s 80c	1s 25c	3s 80c	+1s 98c158%	84	34
Lesser Bloodstone OreBuy 9s, sell 24s 35c	9s	24s 35c	+11s 70c130%	186	22
Heavy StoneBuy 3s 45c, sell 8s 50c	3s 45c	8s 50c	+3s 78c109%	371	81
SwiftthistleBuy 1s 22c, sell 3s	1s 22c	3s	+1s 33c109%	792	40
Green Hills of Stranglethorn - Page 18Buy 5s 94c, sell 13s 96c	5s 94c	13s 96c	+5s 93c100%	35	22
Tin BarBuy 1s 25c, sell 2s 70c	1s 25c	2s 70c	+1s 4c84%	1,905	40
Coarse Gorilla HairBuy 7s 50c, sell 15s	7s 50c	15s	+5s 25c70%	128	20
Copper BarBuy 1s, sell 2s	1s	2s	+70c70%	1,901	106
Deviate FishBuy 75c, sell 1s 50c	75c	1s 50c	+52c70%	294	25
Mageweave ClothBuy 4s 67c, sell 8s 99c	4s 67c	8s 99c	+2s 97c64%	1,652	301
Bolt of MageweaveBuy 24s 40c, sell 46s	24s 40c	46s	+14s 70c60%	106	21
Raptor FleshBuy 2s 65c, sell 4s 93c	2s 65c	4s 93c	+1s 54c58%	270	59
Green Hills of Stranglethorn - Page 11Buy 7s, sell 12s 97c	7s	12s 97c	+4s 2c57%	26	23
Copper OreBuy 95c, sell 1s 75c	95c	1s 75c	+54c57%	3,571	100
StranglekelpBuy 4s 25c, sell 7s 75c	4s 25c	7s 75c	+2s 34c55%	400	90
BriarthornBuy 1s 30c, sell 2s 28c	1s 30c	2s 28c	+64c49%	1,121	55
Raw Bristle Whisker CatfishBuy 58c, sell 1s	58c	1s	+27c47%	1,532	22
TigerseyeBuy 1s 23c, sell 1s 97c	1s 23c	1s 97c	+44c36%	267	40
Green Hills of Stranglethorn - Page 26Buy 4s 45c, sell 7s	4s 45c	7s	+1s 50c34%	21	21
Mystery MeatBuy 2s 25c, sell 3s 49c	2s 25c	3s 49c	+72c32%	455	87
Heavy LeatherBuy 2s, sell 3s	2s	3s	+55c28%	1,821	124
Stringy Wolf MeatBuy 1s 1c, sell 1s 44c	1s 1c	1s 44c	+21c21%	274	27

Alliance against Horde

Moving goods between the factions needs a character on each side and a hand-off through Blackwater, where anyone can buy the listing before your other character does. So these gaps are harder to use, but they show how far apart the two factions' markets are.

Buy on Horde, sell on Alliance NA RP Horde → NA RP Alliance, 5% cut

Item	Buy	Sell	Gap after cut	To buy	Listed there
Deeprock SaltBuy 2s 50c, sell 7s 88c	2s 50c	7s 88c	+4s 99c199%	137	443
Torn Bear PeltBuy 3s 99c, sell 12s	3s 99c	12s	+7s 41c186%	264	92
Tiger MeatBuy 2s, sell 5s 89c	2s	5s 89c	+3s 60c180%	20	289
Steel BarBuy 8s, sell 22s	8s	22s	+12s 90c161%	92	166
Small Furry PawBuy 1s, sell 2s 45c	1s	2s 45c	+1s 33c133%	143	403
Minor Mageblood ElixirBuy 1s 70c, sell 4s	1s 70c	4s	+2s 10c124%	58	77
Sealed Journeyman's WritBuy 15s, sell 34s	15s	34s	+17s 30c115%	44	61
SwiftthistleBuy 1s 22c, sell 2s 49c	1s 22c	2s 49c	+1s 15c94%	792	345
Cerulean DyeBuy 18s 20c, sell 37s	18s 20c	37s	+16s 95c93%	150	259
Deviate FishBuy 75c, sell 1s 50c	75c	1s 50c	+68c90%	294	787
Frilled LichenBuy 8s 2c, sell 15s 90c	8s 2c	15s 90c	+7s 8c88%	288	771
Thistle TeaBuy 1s 99c, sell 3s 90c	1s 99c	3s 90c	+1s 72c86%	141	132
Stag MeatBuy 1s, sell 1s 95c	1s	1s 95c	+85c85%	161	536
Savory Deviate DelightBuy 1s 28c, sell 2s 45c	1s 28c	2s 45c	+1s 5c82%	747	173
Waylaid Crate: Apprentice PartsBuy 2s 90c, sell 5s 49c	2s 90c	5s 49c	+2s 32c80%	95	44
Elixir of Minor AgilityBuy 2s 29c, sell 4s 20c	2s 29c	4s 20c	+1s 70c74%	437	351
Mithril BarBuy 7s 49c, sell 13s 52c	7s 49c	13s 52c	+5s 35c71%	330	1,003
Pattern: Red Woolen BagBuy 8s 99c, sell 16s	8s 99c	16s	+6s 21c69%	28	36
Copper Chain BeltBuy 1s, sell 1s 75c	1s	1s 75c	+66c66%	44	64
Manual: Heavy Silk BandageBuy 45s 74c, sell 80s	45s 74c	80s	+30s 26c66%	23	49
Pristine LeatherBuy 6s 50c, sell 11s 27c	6s 50c	11s 27c	+4s 21c65%	240	413
Mithril OreBuy 6s 49c, sell 10s 90c	6s 49c	10s 90c	+3s 86c60%	981	1,007
Mageweave ClothBuy 4s 67c, sell 7s 50c	4s 67c	7s 50c	+2s 46c53%	1,652	3,077
Coarse Sharpening StoneBuy 99c, sell 1s 55c	99c	1s 55c	+48c49%	143	72
Big Bear SteakBuy 1s 29c, sell 1s 99c	1s 29c	1s 99c	+60c47%	55	21

Buy on Alliance, sell on Horde NA RP Alliance → NA RP Horde, 5% cut

Item	Buy	Sell	Gap after cut	To buy	Listed there
GyrochronatomBuy 12s 60c, sell 38s	12s 60c	38s	+23s 50c187%	129	64
Golden SansamBuy 10s, sell 29s 99c	10s	29s 99c	+18s 49c185%	46	67
IronfeatherBuy 8s 49c, sell 24s 99c	8s 49c	24s 99c	+15s 25c180%	223	112
Silver Skeleton KeyBuy 70c, sell 2s	70c	2s	+1s 20c171%	29	95
Waylaid Crate: Apprentice IngotsBuy 9s, sell 24s 80c	9s	24s 80c	+14s 56c162%	55	93
StranglekelpBuy 1s 55c, sell 4s 25c	1s 55c	4s 25c	+2s 49c160%	835	400
Red Whelp ScaleBuy 1s 84c, sell 5s	1s 84c	5s	+2s 91c158%	140	212
Scorpid ScaleBuy 15s, sell 39s 95c	15s	39s 95c	+22s 95c153%	59	180
Iron CounterweightBuy 14s 85c, sell 37s 80c	14s 85c	37s 80c	+21s 6c142%	38	36
Elixir of Minor SpiritBuy 1s 75c, sell 4s 40c	1s 75c	4s 40c	+2s 43c139%	76	59
Iron GrenadeBuy 1s 99c, sell 5s	1s 99c	5s	+2s 76c139%	209	213
Black PearlBuy 12s 99c, sell 32s 40c	12s 99c	32s 40c	+17s 79c137%	87	31
Waylaid Crate: Journeyman IngotsBuy 3s 50c, sell 8s 50c	3s 50c	8s 50c	+4s 58c131%	75	31
Sagefish DelightBuy 2s, sell 4s 85c	2s	4s 85c	+2s 61c130%	678	292
Lesser Mender's PotionBuy 7s 99c, sell 19s	7s 99c	19s	+10s 6c126%	20	60
Thick HideBuy 5s 48c, sell 13s	5s 48c	13s	+6s 87c125%	230	135
Scroll of Rat FamiliarBuy 81c, sell 1s 90c	81c	1s 90c	+1s123%	45	88
Crystal Basilisk SpineBuy 1s 30c, sell 2s 90c	1s 30c	2s 90c	+1s 46c112%	79	70
GromsbloodBuy 18s, sell 39s 99c	18s	39s 99c	+19s 99c111%	65	93
Green Linen BracersBuy 4s, sell 8s 49c	4s	8s 49c	+4s 7c102%	26	44
Lesser Discolored Healing PotionBuy 1s 94c, sell 4s	1s 94c	4s	+1s 86c96%	33	54
Galestrider JerkyBuy 49c, sell 1s	49c	1s	+46c94%	161	47
Coarse DynamiteBuy 75c, sell 1s 50c	75c	1s 50c	+68c90%	32	151
Crawler MeatBuy 1s, sell 1s 99c	1s	1s 99c	+89c89%	49	229
Dense StoneBuy 25s, sell 49s 71c	25s	49s 71c	+22s 22c89%	236	112

How these are worked out

Prices are listed prices from the last hourly dump, not sales. A gap can close before you get there, and listing an item isn't selling it.
Buy and sell are near-lowest prices (the price of the cheapest 10% of units listed), so one stray cheap listing doesn't make a gap. Each side needs at least 20 units listed, to buy from and to sell against.
The gap is what a sale at the sell price brings in after the auction house's cut, minus the buy price. We haven't measured Forever's cut yet, so this assumes Classic's: 5% at a faction house and 15% at Blackwater. The deposit isn't counted. Only gaps from 10% to 200% after the cut are shown, at most 25 a table: a bigger gap is nearly always a few listings priced far above the market, which nobody buys.
A gap is shown only if it went the same way in the dumps about 24 hours earlier, so one that appeared this hour, and is probably gone soon, isn't.
Blizzard's data doesn't say which ruleset a house serves, so the names are inferred. They agree with BootyBayBroker's market labels and an in-game scan, but so far we've only confirmed EU PvP Alliance in game ourselves.