diff --git a/fix_trade_specification.md b/fix_trade_specification.md
index a7b71c1..19e5799 100644
--- a/fix_trade_specification.md
+++ b/fix_trade_specification.md
@@ -67,6 +67,8 @@ This trade type is used to facilitate average-price workflows, i.e. averaging ma
 | `Omit SEC Fee` | `9005` | `F` `T` | `String` | `1` | `O` | True if SEC fees should not be applied | `T` |
 | `Omit TAF Fee` | `9006` | `F` `T` | `String` | `1` | `O` | True if TAF fees should not be applied | `T` |
 | `Order ID` | `37` |  | `String` |  | `O` | Order ID to link all the executions in the average price account | `123456` |
+| `Last Liquidity Indicator` | `851` | `1` `2` `3` `4` | `Integer` |  | `O` | `1 - Added Liquidity` `2 - Removed Liquidity` `3 - Liquidity Routed Out` `4 - Netted Liquidity` | `1` |
+| `Trade Liquidity Indicator` | `9730` |  | `String` |  | `O` | The liquidity indicator as provided by the exchange; used to specify what effect an order has had on the liquidity of the book and to determine resulting trading costs | `A` |
 
 ### FIX inbound example message for Allocation Trade
 `8=FIX.4.2
9=253
35=8
49=OMS_CLIENT
56=00009132
34=129143
52=20201021-21:42:34
20=0
9001=A
1=100078
17=CLIENT_TRADE_ID
75=20201021
22=4
48=US70450Y1038
421=USA
15=USD
31=000213.480000
32=00000002987
54=2
63=0
64=20201023
60=20201021-13:42:34.123
47=A
76=ABCD
79=100017
10=180
`
@@ -172,6 +174,7 @@ This trade represents a trade between two trading entities. For example, trading
 | `Order ID` | `37` |  | `String` |  | `O` | Order ID to link all the executions in the average price account | `123456` |
 | `NSCC Clearing` | `9010` | `agu` `contra` `corr` `corr_fees` `qsr` | `String` | `O` | `agu` `contra` `corr` `corr_fees` `qsr` | `qsr` |
 | `Last Liquidity Indicator` | `851` | `1` `2` `3` `4` | `Integer` |  | `O` | `1 - Added Liquidity` `2 - Removed Liquidity` `3 - Liquidity Routed Out` `4 - Netted Liquidity` | `1` |
+| `Trade Liquidity Indicator` | `9730` |  | `String` |  | `O` | The liquidity indicator as provided by the exchange; used to specify what effect an order has had on the liquidity of the book and to determine resulting trading costs | `A` |
 
 ### FIX inbound example message for Bilateral Trade
 `8=FIX.4.2
9=261
35=8
49=OMS_CLIENT
56=00009132
34=129141
52=20201021-21:42:34
20=0
9001=B
1=100078
17=CLIENT_TRADE_ID
75=20201021
22=4
48=US70450Y1038
421=USA
15=USD
31=000213.480000
32=00000002987
54=2
63=0
64=20201023
60=20201021-13:42:34.123
47=M
440=0295
375=ABCD
76=WXYZ
10=180
`
@@ -222,6 +225,7 @@ This trade represents a trade between a trading entity and an exchange. For exam
 | `Locate Source` | `9008` |  | `String` |  | `O` | Firm supplying the locate (usually MPID) | `CLST` |
 | `Order ID` | `37` |  | `String` |  | `O` | Order ID to link all the executions in the average price account | `123456` |
 | `Last Liquidity Indicator` | `851` | `1` `2` `3` `4` | `Integer` |  | `O` | `1 - Added Liquidity` `2 - Removed Liquidity` `3 - Liquidity Routed Out` `4 - Netted Liquidity` | `1` |
+| `Trade Liquidity Indicator` | `9730` |  | `String` |  | `O` | The liquidity indicator as provided by the exchange; used to specify what effect an order has had on the liquidity of the book and to determine resulting trading costs | `A` |
 
 ### FIX inbound example message for Exchange Trade
 `8=FIX.4.2
9=251
35=8
49=OMS_CLIENT
56=00009132
34=129144
52=20201021-21:42:34
20=0
9001=E
1=100078
17=CLIENT_TRADE_ID
75=20201021
22=4
48=US70450Y1038
421=USA
15=USD
31=000213.480000
32=00000002987
54=2
63=0
64=20201023
60=20201021-13:42:34.123
47=R
76=ABCD
30=NYSE
10=180
`