diff --git a/content/charts_api.md b/content/charts_api.md
index 2f811c8230..4fc891eaeb 100644
--- a/content/charts_api.md
+++ b/content/charts_api.md
@@ -909,7 +909,7 @@ A successful result contains a JSON array. Each member of the array represents a
| Field | Type | Description |
|-------|------|-------------|
-| base | Object ([Currency Object][]) | The base currency specified for this pair, possibly including a `name` field with the Ripple Name for the `issuer` address. |
+| base | Object ([Currency Object][]) | The base currency specified for this pair, possibly including a `name` field with the Ripple Name for the `issuer` address. |
| counter | Object ([Currency Object][]) | The counter currency specified for this pair, possibly including a `name` field with the Ripple Name for the `issuer` address. |
| depth | Number | (May be omitted) The depth to search for this currency pair, if provided. |
| rate | Number | (May be omitted) The amount of the counter currency that you can purchase with 1 unit of the base currency. By default, this is calculated [volume-weighted average price](https://en.wikipedia.org/wiki/Volume-weighted_average_price) for all exchanges executed during the `range` period from the request. If the request specified `live` as true, this is instead calculated as the midpoint between the weighted average of current bid and ask rates in the network up to the specified `depth`. Omitted if the request specified `last` as `true`. |
@@ -918,6 +918,200 @@ A successful result contains a JSON array. Each member of the array represents a
If no exchanges are found for a currency pair from the request, that pair is omitted from the response.
+## Issuer Capitalization ##
+[[Source]
](https://github.com/ripple/ripple-data-api/blob/develop/api/routes/issuerCapitalization.js "Source")
+
+Retrieve the total capitalization (outstanding balance) of specified currency issuers over time.
+
+#### Request Format ####
+
+
+
+*Request*
+
+```
+POST /api/issuer_capitalization
+{
+ "currencies": [
+ {
+ "currency": "USD",
+ "issuer": "rvYAfWj5gh67oV6fW32ZzP3Aw4Eubs59B"
+ },
+ {
+ "currency": "USD",
+ "issuer": "rMwjYedjc7qqtKYVLiAccJSmCwih4LnE2q"
+ }
+ ],
+ "startTime": "Jan 1, 2014",
+ "endTime": "Jan 1, 2015",
+ "timeIncrement": "month"
+}
+```
+
+
+
+The request includes the following body parameters:
+
+| Field | Value | Description |
+|-------|-------|-------------|
+| currencies | Array of [Currency Objects][Currency Object]) | A list of currency/issuer pairs to look up. |
+| startTime | String ([Date-Time][]) | Retrieve information starting at this time. |
+| endTime | String ([Date-Time][]) | Retrieve information ending at this time. |
+| timeIncrement | String | (Optional) Divide results into intervals of the specified length: `year`, `month`, `day`, `hour`, `minute`, or `second`. The value `all` collapses the results into just one interval. Defaults to `all`. Ignored if `reduce` is `false`. |
+
+#### Response Format ####
+
+An example of a successful response:
+
+```
+[
+ {
+ "currency": "USD",
+ "issuer": "rvYAfWj5gh67oV6fW32ZzP3Aw4Eubs59B",
+ "name": "Bitstamp",
+ "hotwallets": [
+ "rrpNnNLKrartuEqfJGpqyDwPj1AFPg9vn1",
+ "rGFuMiw48HdbnrUbkRYuitXTmfrDBNTCnX"
+ ],
+ "results": [
+ [
+ "2014-01-01T00:00:00+00:00",
+ 2182532.512563024
+ ],
+ [
+ "2014-02-01T00:00:00+00:00",
+ 1672428.6072806932
+ ],
+ [
+ "2014-03-01T00:00:00+00:00",
+ 1475205.4287192414
+ ],
+ [
+ "2014-04-01T00:00:00+00:00",
+ 1475129.7523240475
+ ],
+ [
+ "2014-05-01T00:00:00+00:00",
+ 1641170.5998081048
+ ],
+ [
+ "2014-06-01T00:00:00+00:00",
+ 2823512.0227728607
+ ],
+ [
+ "2014-07-01T00:00:00+00:00",
+ 2181718.7345464956
+ ],
+ [
+ "2014-08-01T00:00:00+00:00",
+ 2150290.1475041625
+ ],
+ [
+ "2014-09-01T00:00:00+00:00",
+ 1370978.1335410434
+ ],
+ [
+ "2014-10-01T00:00:00+00:00",
+ 1386720.726560316
+ ],
+ [
+ "2014-11-01T00:00:00+00:00",
+ 1171158.4417431813
+ ],
+ [
+ "2014-12-01T00:00:00+00:00",
+ 1651264.0460538066
+ ],
+ [
+ "2015-01-01T00:00:00+00:00",
+ 2272895.4608580153
+ ]
+ ]
+ },
+ {
+ "currency": "USD",
+ "issuer": "rMwjYedjc7qqtKYVLiAccJSmCwih4LnE2q",
+ "name": "SnapSwap",
+ "hotwallets": [
+ "ra7JkEzrgeKHdzKgo4EUUVBnxggY4z37kt",
+ "rQsAshmCjPsxkYnxY9GnmBTAeEUaePDAie",
+ "rEk9i7G8ac1kUs1mFjtze1qjj9FzGvXAG",
+ "rsTQ7iwrCik9Ugc3zbpcbo2K3SbAdYJss1",
+ "rwm98fCBS8tV1YB8CGho8zUPW5J7N41th2",
+ "rnd8KJ4qeip6FPJvC1fyv82nW2Lm8C8KjQ",
+ "r5ymZSvtdNgbKVc8ay1Jhmq5f9QgnvEtj"
+ ],
+ "results": [
+ [
+ "2014-01-01T00:00:00+00:00",
+ 308414.17014300067
+ ],
+ [
+ "2014-02-01T00:00:00+00:00",
+ 221127.8278553265
+ ],
+ [
+ "2014-03-01T00:00:00+00:00",
+ 189103.31201476356
+ ],
+ [
+ "2014-04-01T00:00:00+00:00",
+ 166239.66201052035
+ ],
+ [
+ "2014-05-01T00:00:00+00:00",
+ 181126.05199917927
+ ],
+ [
+ "2014-06-01T00:00:00+00:00",
+ 352360.96199815325
+ ],
+ [
+ "2014-07-01T00:00:00+00:00",
+ 406900.8018140941
+ ],
+ [
+ "2014-08-01T00:00:00+00:00",
+ 522981.4027866862
+ ],
+ [
+ "2014-09-01T00:00:00+00:00",
+ 823727.7361699624
+ ],
+ [
+ "2014-10-01T00:00:00+00:00",
+ 1285657.1682029555
+ ],
+ [
+ "2014-11-01T00:00:00+00:00",
+ 1162233.7115210893
+ ],
+ [
+ "2014-12-01T00:00:00+00:00",
+ 1631690.8946927704
+ ],
+ [
+ "2015-01-01T00:00:00+00:00",
+ 3778040.482102244
+ ]
+ ]
+ }
+]
+```
+
+A successful result contains a **JSON array** of objects representing the issuers from the request. Each member object has the following fields:
+
+| Field | Type | Description |
+|-------|------|-------------|
+| currency | String | Currency code of the currency described by this record. |
+| issuer | String (Ripple Address) | The account address of the gateway issuing this currency. |
+| name | String | The name of this gateway, which usually corresponds to the Ripple Name of the account. |
+| hotwallets | Array of Ripple Addresses | Hot wallets controlled by this gateway. Assets held by these accounts are not counted towards the capitalization. |
+| results | Array of Arrays | The capitalization of the issuer/currency pair as an array of intervals. Each nested array has two values: a String ([Date-Time][]) specifying the beginning of the interval, and a number representing the total units of the currency distributed through the network at the time. |
+
+The list of gateway names and hot wallets is defined by the [gateways.json](https://github.com/ripple/ripple-data-api/blob/a6c23a8c1bc5f073f2dd2bf32e8d763b66b6a2e3/api/gateways.json) file in the server tree. In the future, this may be [expanded to use host-meta](https://ripplelabs.atlassian.net/browse/RD-75).
+
+
## Offers Exercised ##
[[Source]
](https://github.com/ripple/ripple-data-api/blob/master/api/routes/offersExercised.js "Source")