diff --git a/docs/cli/indicators/R/055.md b/docs/cli/indicators/R/055.md
new file mode 100644
index 0000000..33f822d
--- /dev/null
+++ b/docs/cli/indicators/R/055.md
@@ -0,0 +1,60 @@
+# TODO The title of the indicator (R055)
+
+TODO A one-sentence description of the indicator.
+
+## Methodology
+
+TODO
+
+:::{admonition} Example
+:class: seealso
+
+TODO
+:::
+
+:::{admonition} Why is this a red flag?
+:class: hint
+
+TODO
+:::
+
+<small>Based on "TODO" in [*TODO*](TODO).</small>
+
+## Output
+
+The indicator's value is TODO.
+
+## Configuration
+
+All configuration is optional. To override the default TODO:
+
+```ini
+[R055]
+TODO
+```
+
+## Exclusions
+
+A contracting process is excluded if:
+
+- TODO
+
+## Assumptions
+
+TODO
+
+## Demonstration
+
+*Input*
+
+:::{literalinclude} ../../../examples/R/055.jsonl
+:language: json
+:::
+
+*Output*
+
+```console
+$ ocdscardinal indicators --settings docs/examples/settings.ini --no-meta docs/examples/R/055.jsonl
+{}
+
+```
diff --git a/docs/cli/init.md b/docs/cli/init.md
index 1156fd2..c2a2c3f 100644
--- a/docs/cli/init.md
+++ b/docs/cli/init.md
@@ -118,6 +118,11 @@ $ ocdscardinal init -
 ; threshold = 10
 ; minimum_contracting_processes = 20
 
+[R055]
+; threshold = 66593
+; start_date = 2022-01-01
+; end_date = 2022-12-31
+
 [R058]
 ; threshold = 0.5
 
diff --git a/docs/examples/R/055.jsonl b/docs/examples/R/055.jsonl
new file mode 100644
index 0000000..0967ef4
--- /dev/null
+++ b/docs/examples/R/055.jsonl
@@ -0,0 +1 @@
+{}
diff --git a/docs/examples/settings.ini b/docs/examples/settings.ini
index fb1867d..517cfb6 100644
--- a/docs/examples/settings.ini
+++ b/docs/examples/settings.ini
@@ -8,4 +8,5 @@
 [R036]
 [R038]
 [R048]
+[R055]
 [R058]
diff --git a/src/indicators/mod.rs b/src/indicators/mod.rs
index 3a7836e..95cd3c1 100644
--- a/src/indicators/mod.rs
+++ b/src/indicators/mod.rs
@@ -8,15 +8,17 @@ pub mod r035;
 pub mod r036;
 pub mod r038;
 pub mod r048;
+pub mod r055;
 pub mod r058;
 pub mod util;
 
 use std::collections::{HashMap, HashSet};
 use std::ops::AddAssign;
 
+use chrono::NaiveDate;
 use indexmap::IndexMap;
 use serde::ser::SerializeMap;
-use serde::{Deserialize, Serialize, Serializer};
+use serde::{de, Deserialize, Deserializer, Serialize, Serializer};
 use serde_json::{Map, Value};
 
 // Settings.
@@ -119,6 +121,32 @@ pub struct R048 {
     pub minimum_contracting_processes: Option<usize>,
 }
 
+#[derive(Clone, Debug, Default, Deserialize)]
+#[serde(deny_unknown_fields)]
+pub struct R055 {
+    pub threshold: Option<f64>,
+    #[serde(deserialize_with = "naive_date_from_str")]
+    pub start_date: Option<NaiveDate>,
+    #[serde(deserialize_with = "naive_date_from_str")]
+    pub end_date: Option<NaiveDate>,
+}
+
+// https://serde.rs/field-attrs.html#deserialize_with
+fn naive_date_from_str<'de, D>(deserializer: D) -> Result<Option<NaiveDate>, D::Error>
+where
+    D: Deserializer<'de>,
+{
+    let s: Option<String> = Option::deserialize(deserializer)?;
+    s.map_or_else(
+        || Ok(None),
+        |s| {
+            NaiveDate::parse_from_str(&s, "%Y-%m-%d")
+                .map(Some)
+                .map_err(de::Error::custom)
+        },
+    )
+}
+
 #[derive(Clone, Debug, Default, Deserialize)]
 #[serde(deny_unknown_fields)]
 #[allow(non_snake_case)]
@@ -144,6 +172,7 @@ pub struct Settings {
     pub R036: Option<Empty>,
     pub R038: Option<R038>,
     pub R048: Option<R048>,
+    pub R055: Option<R055>,
     pub R058: Option<FloatThreshold>, // ratio
 }
 
@@ -169,6 +198,7 @@ pub enum Indicator {
     R036,
     R038,
     R048,
+    R055,
     R058,
 }
 
@@ -216,6 +246,12 @@ pub struct Indicators {
     pub r038_tenderer: HashMap<String, Fraction>,
     /// The item classifications for each `bids/details/tenderers/id`.
     pub r048_classifications: HashMap<String, (usize, HashSet<String>)>,
+    /// The `tender/value/amount` for each `ocid` when `tender/procurementMethod` is 'open'.
+    pub r055_open_tender_amount: HashMap<String, f64>,
+    /// The total awarded amount for each `buyer/id` and `awards/suppliers/id` when `tender/procurementMethod` is 'direct'.
+    pub r055_direct_awarded_amount_supplier_buyer: HashMap<(String, String), f64>,
+    /// The total awarded amount for each `tender/procuringEntity/id` and `awards/suppliers/id` when `tender/procurementMethod` is 'direct'.    
+    pub r055_direct_awarded_amount_supplier_procuring_entity: HashMap<(String, String), f64>,
     /// Whether to map contracting processes to organizations.
     pub map: bool,
 }
diff --git a/src/indicators/r055.rs b/src/indicators/r055.rs
new file mode 100644
index 0000000..980917b
--- /dev/null
+++ b/src/indicators/r055.rs
@@ -0,0 +1,133 @@
+use chrono::{Duration, NaiveDate, Utc};
+use log::warn;
+use serde_json::{Map, Value};
+
+use crate::indicators::{set_meta, set_result, sum, Calculate, Indicators, Settings};
+
+#[derive(Default)]
+pub struct R055 {
+    threshold: Option<f64>, // resolved in finalize()
+    start_date: NaiveDate,
+    end_date: NaiveDate,
+    currency: Option<String>,
+}
+
+impl Calculate for R055 {
+    fn new(settings: &mut Settings) -> Self {
+        let setting = std::mem::take(&mut settings.R055).unwrap_or_default();
+        let today = Utc::now().date_naive();
+
+        Self {
+            threshold: setting.threshold,
+            start_date: setting.start_date.unwrap_or(today - Duration::days(365)),
+            end_date: setting.end_date.unwrap_or(today),
+            currency: settings.currency.clone(),
+        }
+    }
+
+    fn fold(&self, item: &mut Indicators, release: &Map<String, Value>, ocid: &str) {
+        if let Some(Value::Object(tender)) = release.get("tender")
+            && let Some(Value::Object(tender_period)) = tender.get("tenderPeriod")
+            && let Some(Value::String(date)) = tender_period.get("startDate")
+            && let Some(Value::String(method)) = tender.get("procurementMethod")
+            && method == "open"
+            && let Ok(date) = NaiveDate::parse_from_str(date, "%Y-%m-%dT%H:%M:%S%z")
+            && date >= self.start_date
+            && date <= self.end_date
+            && let Some(Value::Object(value)) = tender.get("value")
+            && let Some(Value::Number(amount)) = value.get("amount")
+            && let Some(Value::String(currency)) = value.get("currency")
+            && let Some(amount) = amount.as_f64()
+        {
+            if currency
+                == item
+                    .currency
+                    .get_or_insert_with(|| self.currency.as_ref().map_or_else(|| currency.clone(), Clone::clone))
+            {
+                item.r055_open_tender_amount.insert(ocid.to_owned(), amount);
+            } else {
+                warn!("{} is not {:?}, skipping.", currency, item.currency);
+            }
+        }
+
+        if let Some(Value::Array(awards)) = release.get("awards") {
+            for award in awards {
+                if let Some(Value::String(status)) = award.get("status")
+                    && let Some(Value::Array(suppliers)) = award.get("suppliers")
+                    && suppliers.len() == 1
+                    && let Some(Value::String(supplier_id)) = suppliers[0].get("id")
+                    && status == "active"
+                    && let Some(Value::String(date)) = award.get("date")
+                    && let Ok(date) = NaiveDate::parse_from_str(date, "%Y-%m-%dT%H:%M:%S%z")
+                    && date >= self.start_date
+                    && date <= self.end_date
+                    && let Some(Value::Object(value)) = award.get("value")
+                    && let Some(Value::Number(amount)) = value.get("amount")
+                    && let Some(Value::String(currency)) = value.get("currency")
+                    && let Some(amount) = amount.as_f64()
+                {
+                    if currency
+                        == item.currency.get_or_insert_with(|| {
+                            self.currency.as_ref().map_or_else(|| currency.clone(), Clone::clone)
+                        })
+                    {
+                        if let Some(Value::Object(buyer)) = release.get("buyer")
+                            && let Some(Value::String(id)) = buyer.get("id")
+                        {
+                            item.r055_direct_awarded_amount_supplier_buyer
+                                .insert((id.clone(), supplier_id.clone()), amount);
+                        }
+                        if let Some(Value::Object(tender)) = release.get("tender")
+                            && let Some(Value::Object(procuring_entity)) = tender.get("procuringEntity")
+                            && let Some(Value::String(id)) = procuring_entity.get("id")
+                        {
+                            item.r055_direct_awarded_amount_supplier_procuring_entity
+                                .insert((id.clone(), supplier_id.clone()), amount);
+                        }
+                    } else {
+                        warn!("{} is not {:?}, skipping.", currency, item.currency);
+                    }
+                }
+            }
+        }
+    }
+
+    fn reduce(&self, item: &mut Indicators, other: &mut Indicators) {
+        let mut min = 0.0;
+        for (key, value) in std::mem::take(&mut other.r055_open_tender_amount) {
+            if min <= value {
+                item.r055_open_tender_amount.insert(key, value);
+                min = value;
+            }
+        }
+        sum!(item, other, r055_direct_awarded_amount_supplier_buyer);
+        sum!(item, other, r055_direct_awarded_amount_supplier_procuring_entity);
+    }
+
+    fn finalize(&self, item: &mut Indicators) {
+        let min_amount = self.threshold.map_or_else(
+            || {
+                std::mem::take(&mut item.r055_open_tender_amount)
+                    .values()
+                    .copied()
+                    .last()
+                    .unwrap_or(0.0)
+            },
+            |v| v,
+        );
+        set_meta!(item, R055, "lower_open_amount", min_amount);
+
+        for (id, amount) in &item.r055_direct_awarded_amount_supplier_buyer {
+            if *amount >= min_amount {
+                set_result!(item, Buyer, id.0, R055, *amount);
+                set_result!(item, Tenderer, id.1, R055, *amount);
+            }
+        }
+        for (id, amount) in &item.r055_direct_awarded_amount_supplier_procuring_entity {
+            if *amount >= min_amount {
+                set_result!(item, ProcuringEntity, id.0, R055, *amount);
+                set_result!(item, Tenderer, id.1, R055, *amount);
+            }
+        }
+    }
+}
diff --git a/src/lib.rs b/src/lib.rs
index a62c08d..727f00a 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -27,6 +27,7 @@ use crate::indicators::r035::R035;
 use crate::indicators::r036::R036;
 use crate::indicators::r038::R038;
 use crate::indicators::r048::R048;
+use crate::indicators::r055::R055;
 use crate::indicators::r058::R058;
 use crate::indicators::util::{SecondLowestBidRatio, Tenderers};
 pub use crate::indicators::{Calculate, Codelist, Exclusions, Group, Indicator, Indicators, Modifications, Settings};
@@ -144,6 +145,11 @@ pub fn init(path: &PathBuf, force: &bool) -> std::io::Result<bool> {
 ; threshold = 10
 ; minimum_contracting_processes = 20
 
+[R055]
+; threshold = 66593
+; start_date = 2022-01-01
+; end_date = 2022-12-31
+
 [R058]
 ; threshold = 0.5
 ";
@@ -255,6 +261,7 @@ impl Indicators {
             R036,
             R038,
             R048,
+            R055,
             R058,
         );
 
diff --git a/tests/fixtures/indicators/R055.expected b/tests/fixtures/indicators/R055.expected
new file mode 100644
index 0000000..0967ef4
--- /dev/null
+++ b/tests/fixtures/indicators/R055.expected
@@ -0,0 +1 @@
+{}
diff --git a/tests/fixtures/indicators/R055.jsonl b/tests/fixtures/indicators/R055.jsonl
new file mode 100644
index 0000000..0967ef4
--- /dev/null
+++ b/tests/fixtures/indicators/R055.jsonl
@@ -0,0 +1 @@
+{}