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The Herb Index is made up of a weighted average of all of the grimy and clean herbs listed in the Market Watch, with the starting date of this average on 10 June 2009, at an index of 100. The overall rising and falling of herb prices is reflected in this index.

While specialised for just watching herb prices, it is set up and adjusted in a manner similar to the Common Trade Index, and the divisor may be adjusted to include new herbs added by Jagex (see the FAQ for more information).

As of today, this index is 393.10 Down -1.81

Historical chart[]

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Summary[]

Any suggested changes to this index should be added to the talk page.

  • Start date: 10 June 2009 (at index of 100)
  • Index today: 393.10
  • Change today: Down -1.81
  • Number of items: 34 (last adjusted on 6 November 2011)
  • Index divisor: 33.2409 (last adjusted on 6 November 2011)

List of items[]

This is the current list of items included in this index:


Adjustments[]

Icon Item Price Direction Low Alch High Alch Limit Members Details Last updated
Grimy avantoeGrimy avantoe1,043
Up
0010,000P2P iconview3 years ago
Grimy cadantineGrimy cadantine4,322
Down
0010,000P2P iconview3 years ago
Grimy dwarf weedGrimy dwarf weed8,476
Up
0010,000P2P iconview3 years ago
Grimy guamGrimy guam709
Down
121810,000F2P iconview3 years ago
Grimy harralanderGrimy harralander741
Up
0010,000P2P iconview3 years ago
Grimy iritGrimy irit5,008
Up
0010,000P2P iconview3 years ago
Grimy kwuarmGrimy kwuarm11,782
Up
0010,000P2P iconview3 years ago
Grimy lantadymeGrimy lantadyme7,551
Down
Cannot be alchemised10,000P2P iconview3 years ago
Grimy marrentillGrimy marrentill2,307
Down
0010,000F2P iconview3 years ago
Grimy ranarrGrimy ranarr1,860
Down
0010,000P2P iconview3 years ago
Grimy snapdragonGrimy snapdragon1,789
Down
0010,000P2P iconview3 years ago
Grimy tarrominGrimy tarromin105
Up
0010,000F2P iconview3 years ago
Grimy torstolGrimy torstol5,389
Up
0010,000P2P iconview3 years ago
Clean lantadymeClean lantadyme8,002
Down
274010,000P2P iconview3 years ago
Clean ranarrClean ranarr2,108
Up
101510,000P2P iconview3 years ago
Clean avantoeClean avantoe1,151
Up
192810,000P2P iconview3 years ago
Clean cadantineClean cadantine4,724
Up
263910,000P2P iconview3 years ago
Clean dwarf weedClean dwarf weed8,810
Up
284210,000P2P iconview3 years ago
Clean fellstalkClean fellstalk7,166
Down
609010,000P2P iconview3 years ago
Clean guamClean guam738
Down
121810,000F2P iconview3 years ago
Clean harralanderClean harralander938
Down
81210,000P2P iconview3 years ago
Clean iritClean irit5,305
Up
162410,000P2P iconview3 years ago
Clean kwuarmClean kwuarm11,981
Up
213210,000P2P iconview3 years ago
Clean marrentillClean marrentill2,516
Down
2310,000F2P iconview3 years ago
Clean snapdragonClean snapdragon1,979
Up
233510,000P2P iconview3 years ago
Clean spirit weedClean spirit weed17,285
Up
91410,000P2P iconview3 years ago
Clean tarrominClean tarromin127
Up
4610,000F2P iconview3 years ago
Clean toadflaxClean toadflax11,699
Up
192810,000P2P iconview3 years ago
Clean torstolClean torstol5,548
Down
304510,000P2P iconview3 years ago
Clean wergaliClean wergali2,593
Up
172610,000P2P iconview3 years ago
Grimy fellstalkGrimy fellstalk6,860
Up
406010,000P2P iconview3 years ago
Grimy spirit weedGrimy spirit weed16,575
Up
0010,000P2P iconview3 years ago
Grimy toadflaxGrimy toadflax11,250
Up
0010,000P2P iconview3 years ago
Grimy wergaliGrimy wergali2,701
Down
0010,000P2P iconview3 years ago
6 November 2011
Item Base date Base price Price on adjustment date Comments
Grimy guam 9 June 2009 490 121 Unchanged
Grimy marrentill 192 25
Grimy tarromin 216 121
Grimy harralander 787 100
Grimy ranarr 7,654 4,032
Grimy toadflax 2,315 3,637
Grimy irit 1,552 1,172
Grimy wergali 1,800 2,450
Grimy spirit weed 1,917 2,658
Grimy avantoe 1,591 3,293
Grimy kwuarm 2,850 1,356
Grimy snapdragon 9,720 5,224
Grimy cadantine 1,234 1,186
Grimy lantadyme 1,272 5,006
Grimy dwarf weed 2,042 4,744
Grimy torstol 2,980 25,300
Clean guam 481 126
Clean marrentill 101 16
Clean tarromin 193 143
Clean harralander 791 100
Clean ranarr 7,719 3,867
Clean toadflax 2,362 3,644
Clean irit 1,795 1,232
Clean wergali 2,000 2,331
Clean spirit weed 1,888 2,725
Clean avantoe 1,593 3,253
Clean kwuarm 2,881 1,389
Clean snapdragon 9,726 5,402
Clean cadantine 1,245 1,206
Clean lantadyme 1,319 5,267
Clean dwarf weed 2,070 4,668
Clean torstol 2,762 25,400
Grimy fellstalk 1,799 Added item
Clean fellstalk 1,437

Calculations

From the old divisor obtained from the templates:


We need to calculate a new divisor:


To calculate the new divisor, we need to find:


And also:


Thus, the new divisor is:

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