diff --git a/programs/mango-v4/src/state/spot_market_info.rs b/programs/mango-v4/src/state/spot_market_info.rs
deleted file mode 100644
index 5274ede5b..000000000
--- a/programs/mango-v4/src/state/spot_market_info.rs
+++ /dev/null
@@ -1,11 +0,0 @@
-use anchor_lang::prelude::*;
-use fixed::types::I80F48;
-
-pub struct SpotMarketInfo {
-    pub spot_market: Pubkey,
-    pub maint_asset_weight: I80F48,
-    pub init_asset_weight: I80F48,
-    pub maint_liab_weight: I80F48,
-    pub init_liab_weight: I80F48,
-    pub liquidation_fee: I80F48,
-}
diff --git a/programs/mango-v4/src/state/unused/advanced_orders.rs b/programs/mango-v4/src/state/unused/advanced_orders.rs
deleted file mode 100644
index 87eaf7218..000000000
--- a/programs/mango-v4/src/state/unused/advanced_orders.rs
+++ /dev/null
@@ -1,30 +0,0 @@
-use fixed::types::I80F48;
-
-pub struct AnyAdvancedOrder {
-    pub advanced_order_type: AdvancedOrderType,
-    pub is_active: bool,
-    pub padding: [u8; ADVANCED_ORDER_SIZE - 2],
-}
-
-pub struct PerpTriggerOrder {
-    pub advanced_order_type: AdvancedOrderType,
-    pub is_active: bool,
-    pub market_index: u8,
-    pub order_type: OrderType,
-    pub side: Side,
-    pub trigger_condition: TriggerCondition, // Bid & Below => Take profit on short, Bid & Above => stop loss on short
-    pub reduce_only: bool,                   // only valid on perp order
-    pub padding0: [u8; 1],
-    pub client_order_id: u64,
-    pub price: i64,
-    pub quantity: i64,
-    pub trigger_price: I80F48,
-
-    /// Padding for expansion
-    pub padding1: [u8; 32],
-}
-
-pub struct AdvancedOrders {
-    pub meta_data: MetaData,
-    pub orders: [AnyAdvancedOrder; MAX_ADVANCED_ORDERS],
-}
diff --git a/programs/mango-v4/src/state/unused/cache.rs b/programs/mango-v4/src/state/unused/cache.rs
deleted file mode 100644
index 9bc352884..000000000
--- a/programs/mango-v4/src/state/unused/cache.rs
+++ /dev/null
@@ -1,32 +0,0 @@
-use fixed::types::I80F48;
-
-// todo: I remember hearing something around we wanting to use the oracle account directly in program?
-// but then if the confidence is bad, how would we refer to last known confident value?
-pub struct PriceCache {
-    pub price: I80F48, // unit is interpreted as how many quote native tokens for 1 base native token
-    pub last_update: u64,
-}
-
-// todo: can we use rootbank directly?
-// what about write locks? sleep on this!
-pub struct RootBankCache {
-    pub deposit_index: I80F48,
-    pub borrow_index: I80F48,
-    pub last_update: u64,
-}
-
-// todo: can we just use the perpmarket directly?
-// what about write locks? sleep on this!
-pub struct PerpMarketCache {
-    pub long_funding: I80F48,
-    pub short_funding: I80F48,
-    pub last_update: u64,
-}
-
-pub struct MangoCache {
-    pub meta_data: MetaData,
-
-    pub price_cache: [PriceCache; MAX_PAIRS],
-    pub root_bank_cache: [RootBankCache; MAX_TOKENS],
-    pub perp_market_cache: [PerpMarketCache; MAX_PAIRS],
-}
diff --git a/programs/mango-v4/src/state/unused/order_book_state_header.rs b/programs/mango-v4/src/state/unused/order_book_state_header.rs
deleted file mode 100644
index 61b16a707..000000000
--- a/programs/mango-v4/src/state/unused/order_book_state_header.rs
+++ /dev/null
@@ -1,3 +0,0 @@
-pub struct OrderBookStateHeader {
-    pub account_flags: u64, // Initialized, (Bids or Asks)
-}
diff --git a/programs/mango-v4/src/state/unused/perp_account.rs b/programs/mango-v4/src/state/unused/perp_account.rs
deleted file mode 100644
index 3f7f566de..000000000
--- a/programs/mango-v4/src/state/unused/perp_account.rs
+++ /dev/null
@@ -1,19 +0,0 @@
-use fixed::types::I80F48;
-
-pub struct PerpAccount {
-    pub base_position: i64,     // measured in base lots
-    pub quote_position: I80F48, // measured in native quote
-
-    pub long_settled_funding: I80F48,
-    pub short_settled_funding: I80F48,
-
-    // orders related info
-    pub bids_quantity: i64, // total contracts in sell orders
-    pub asks_quantity: i64, // total quote currency in buy orders
-
-    /// Amount that's on EventQueue waiting to be processed
-    pub taker_base: i64,
-    pub taker_quote: i64,
-
-    pub mngo_accrued: u64,
-}
diff --git a/programs/mango-v4/src/state/unused/perp_market.rs b/programs/mango-v4/src/state/unused/perp_market.rs
deleted file mode 100644
index e98d17949..000000000
--- a/programs/mango-v4/src/state/unused/perp_market.rs
+++ /dev/null
@@ -1,47 +0,0 @@
-use anchor_lang::prelude::*;
-use fixed::types::I80F48;
-
-pub struct LiquidityMiningInfo {
-    /// Used to convert liquidity points to MNGO
-    pub rate: I80F48,
-
-    pub max_depth_bps: I80F48, // instead of max depth bps, this should be max num contracts
-
-    /// start timestamp of current liquidity incentive period; gets updated when mngo_left goes to 0
-    pub period_start: u64,
-
-    /// Target time length of a period in seconds
-    pub target_period_length: u64,
-
-    /// Paper MNGO left for this period
-    pub mngo_left: u64,
-
-    /// Total amount of MNGO allocated for current period
-    pub mngo_per_period: u64,
-}
-
-pub struct PerpMarket {
-    pub meta_data: MetaData,
-
-    pub mango_group: Pubkey,
-    pub bids: Pubkey,
-    pub asks: Pubkey,
-    pub event_queue: Pubkey,
-    pub quote_lot_size: i64, // number of quote native that reresents min tick
-    pub base_lot_size: i64,  // represents number of base native quantity; greater than 0
-
-    // TODO - consider just moving this into the cache
-    pub long_funding: I80F48,
-    pub short_funding: I80F48,
-
-    pub open_interest: i64, // This is i64 to keep consistent with the units of contracts, but should always be > 0
-
-    pub last_updated: u64,
-    pub seq_num: u64,
-    pub fees_accrued: I80F48, // native quote currency
-
-    pub liquidity_mining_info: LiquidityMiningInfo,
-
-    // mngo_vault holds mango tokens to be disbursed as liquidity incentives for this perp market
-    pub mngo_vault: Pubkey,
-}
diff --git a/programs/mango-v4/src/state/unused/perp_market_info.rs b/programs/mango-v4/src/state/unused/perp_market_info.rs
deleted file mode 100644
index 6ce16cab5..000000000
--- a/programs/mango-v4/src/state/unused/perp_market_info.rs
+++ /dev/null
@@ -1,16 +0,0 @@
-use fixed::types::I80F48;
-
-use crate::Pubkey;
-
-pub struct PerpMarketInfo {
-    pub perp_market: Pubkey, // One of these may be empty
-    pub maint_asset_weight: I80F48,
-    pub init_asset_weight: I80F48,
-    pub maint_liab_weight: I80F48,
-    pub init_liab_weight: I80F48,
-    pub liquidation_fee: I80F48,
-    pub maker_fee: I80F48,
-    pub taker_fee: I80F48,
-    pub base_lot_size: i64,  // The lot size of the underlying
-    pub quote_lot_size: i64, // min tick
-}
diff --git a/programs/mango-v4/src/state/unused/referrer.rs b/programs/mango-v4/src/state/unused/referrer.rs
deleted file mode 100644
index bf9362e5a..000000000
--- a/programs/mango-v4/src/state/unused/referrer.rs
+++ /dev/null
@@ -1,12 +0,0 @@
-use anchor_lang::prelude::*;
-
-pub struct ReferrerMemory {
-    pub meta_data: MetaData,
-    pub referrer_mango_account: Pubkey,
-}
-
-pub struct ReferrerIdRecord {
-    pub meta_data: MetaData,
-    pub referrer_mango_account: Pubkey,
-    pub id: [u8; INFO_LEN], // this id is one of the seeds
-}