diff --git a/third_party/pyth/pyth_publisher.py b/third_party/pyth/pyth_publisher.py
index 698872bd46..b2486a8eb0 100644
--- a/third_party/pyth/pyth_publisher.py
+++ b/third_party/pyth/pyth_publisher.py
@@ -12,8 +12,6 @@
 import threading
 import time
 
-PYTH_TEST_SYMBOL_COUNT = int(os.environ.get("PYTH_TEST_SYMBOL_COUNT", "9"))
-
 class PythAccEndpoint(BaseHTTPRequestHandler):
     """
     A dumb endpoint to respond with a JSON containing Pyth symbol and mapping addresses
@@ -60,6 +58,9 @@ def accounts_endpoint():
 
 
 def add_symbol(num: int):
+    """
+    NOTE: Updates HTTP_ENDPOINT_DATA
+    """
     symbol_name = f"Test symbol {num}"
     # Add a product
     prod_pubkey = pyth_admin_run_or_die(
@@ -96,6 +97,8 @@ def add_symbol(num: int):
 
     sys.stdout.flush()
 
+    print(f"New symbol: {num}")
+
     return num
 
 # Fund the publisher
@@ -122,14 +125,14 @@ def add_symbol(num: int):
     "--keypair", PYTH_PUBLISHER_KEYPAIR
 ], capture_output=True).stdout.strip()
 
-with ThreadPoolExecutor(max_workers=10) as executor:
+with ThreadPoolExecutor(max_workers=PYTH_TEST_SYMBOL_COUNT) as executor:
     add_symbol_futures = {executor.submit(add_symbol, sym_id) for sym_id in range(PYTH_TEST_SYMBOL_COUNT)}
     
     for future in as_completed(add_symbol_futures):
         print(f"Completed {future.result()}")
 
 print(
-    f"Mock updates ready to roll. Updating every {str(PYTH_PUBLISHER_INTERVAL)} seconds")
+    f"Mock updates ready to roll. Updating every {str(PYTH_PUBLISHER_INTERVAL_SECS)} seconds")
 
 # Spin off the readiness probe endpoint into a separate thread
 readiness_thread = threading.Thread(target=readiness, daemon=True)
@@ -140,12 +143,26 @@ def add_symbol(num: int):
 readiness_thread.start()
 http_service.start()
 
-while True:
-    for sym in HTTP_ENDPOINT_DATA["symbols"]:
-        publisher_random_update(sym["price"])
+next_new_symbol_id = PYTH_TEST_SYMBOL_COUNT
+last_new_sym_added_at = time.monotonic()
+
+with ThreadPoolExecutor() as executor: # Used for async adding of products and prices
+    while True:
+        for sym in HTTP_ENDPOINT_DATA["symbols"]:
+            publisher_random_update(sym["price"])
+
+        # Add a symbol if new symbol interval configured
+        if PYTH_NEW_SYMBOL_INTERVAL_SECS > 0:
+            # Do it if enough time passed
+            now = time.monotonic()
+            if (now - last_new_sym_added_at) >= PYTH_NEW_SYMBOL_INTERVAL_SECS:
+                executor.submit(add_symbol, next_new_symbol_id) # Returns immediately, runs in background
+                last_sym_added_at = now
+                next_new_symbol_id += 1
+
+        time.sleep(PYTH_PUBLISHER_INTERVAL_SECS)
+        sys.stdout.flush()
 
-    time.sleep(PYTH_PUBLISHER_INTERVAL)
-    sys.stdout.flush()
 
 readiness_thread.join()
 http_service.join()
diff --git a/third_party/pyth/pyth_utils.py b/third_party/pyth/pyth_utils.py
index be01eb9b00..99b79f5f62 100644
--- a/third_party/pyth/pyth_utils.py
+++ b/third_party/pyth/pyth_utils.py
@@ -14,7 +14,18 @@
 PYTH_PUBLISHER_KEYPAIR = os.environ.get(
     "PYTH_PUBLISHER_KEYPAIR", f"{PYTH_KEY_STORE}/publish_key_pair.json"
 )
-PYTH_PUBLISHER_INTERVAL = float(os.environ.get("PYTH_PUBLISHER_INTERVAL", "5"))
+# How long to sleep between mock Pyth price updates
+PYTH_PUBLISHER_INTERVAL_SECS = float(os.environ.get("PYTH_PUBLISHER_INTERVAL_SECS", "5"))
+PYTH_TEST_SYMBOL_COUNT = int(os.environ.get("PYTH_TEST_SYMBOL_COUNT", "9"))
+
+# If above 0, adds a new test symbol periodically, waiting at least
+# the given number of seconds in between
+# 
+# NOTE: the new symbols are added in the HTTP endpoint used by the
+# p2w-attest service in Tilt. You may need to wait to see p2w-attest
+# pick up brand new symbols
+PYTH_NEW_SYMBOL_INTERVAL_SECS = int(os.environ.get("PYTH_NEW_SYMBOL_INTERVAL_SECS", "120"))
+
 PYTH_MAPPING_KEYPAIR = os.environ.get(
     "PYTH_MAPPING_KEYPAIR", f"{PYTH_KEY_STORE}/mapping_key_pair.json"
 )