diff --git a/src/bots.rs b/src/bots.rs
index 4dff8c0..36ea4be 100644
--- a/src/bots.rs
+++ b/src/bots.rs
@@ -68,7 +68,7 @@ impl ArbitrageBot {
 
         for answer in self.answers.values() {
             bets.push(manifold_types::BotBet {
-                amount: 100. * (1. / answer.probability) / inverse_sum,
+                amount: 500. * (1. / answer.probability) / inverse_sum,
                 contract_id: self.market.lite_market.id.clone(),
                 outcome: manifold_types::MarketOutcome::Yes,
                 answer_id: Some(answer.id.clone()),
diff --git a/src/market_handler.rs b/src/market_handler.rs
index 4d8e114..c77cfbe 100644
--- a/src/market_handler.rs
+++ b/src/market_handler.rs
@@ -328,13 +328,12 @@ impl MarketHandler {
 
         for pos in open_positions {
             let data = Some(serde_json::json!({
-                "contractId": pos.contract_id,
                 "answerId": pos.answer_id,
             }));
 
             let sell_response = rate_limited_post_endpoint(
                 self.write_rate_limiter.clone(),
-                "sell-shares".to_string(),
+                format!("market/{}/sell", pos.contract_id),
                 &[],
                 data,
             )