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stock-oracle/app/services
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I Luk Kim c4565159b1 fix: universe service - NASDAQ case bug + OOM prevention 
Two fixes to universe snapshot build:

1. SEC EDGAR exchange case mismatch: company_tickers_exchange.json uses
   "Nasdaq" (mixed case) but filter expected "NASDAQ". All NASDAQ-listed
   stocks (AAPL, MSFT, GOOGL, etc.) were silently excluded from registry.
   Fixed with case-insensitive _US_EXCHANGE_MAP lookup + canonical normalization.

2. OOM during large builds: SEC EDGAR companyfacts JSONs accumulate in
   _json_cache without eviction, causing OOM after ~1500-1800 tickers.
   Fixed by clearing _json_cache + _text_cache + gc.collect() every 20
   batches. Memory remains stable throughout full 9,376-ticker build.

Result: 529,328 snapshot rows, 5,570 tickers (NASDAQ:2515, NYSE:2084, OTC:971)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
 		5 months ago
..
attention feat(attention): Attention 서브시스템 추가 — 이벤트 중심 Wikipedia/GDELT 관심도 피처 5 months ago
overlay perf: API 성능 개선 Round 3 — 8개 항목 (P15-P22) 5 months ago
__init__.py Initial commit with full project improvements 5 months ago
alpaca_client.py Add Alpaca-specific DB table and Redis caching for Alpaca/FINRA endpoints 5 months ago
alpaca_price_service.py perf: API 성능 개선 Round 3 — 8개 항목 (P15-P22) 5 months ago
earnings_service.py feat: Earnings Surprise를 yfinance-plus로 전환 (Alpha Vantage 제거) 5 months ago
etf_holdings_fetcher.py fix(etf): as_of_date에 가장 가까운 파일링 반환하도록 수정 5 months ago
etf_loader_service.py Initial commit with full project improvements 5 months ago
financial_service.py perf: Phase 1-3 Stock Oracle API 성능 개선 5 months ago
finra_short_volume_service.py perf: API 성능 개선 Round 3 — 8개 항목 (P15-P22) 5 months ago
fred_proxy_service.py Codebase improvements: caching decorator, Pydantic v2, DB indexes, connection pooling, Alembic 5 months ago
fred_service.py Initial commit with full project improvements 5 months ago
index_constituents_service.py fix(stocks): Wikipedia 403 우회를 위해 User-Agent 헤더 추가 5 months ago
insider_transaction_service.py feat: Earnings Surprise를 SEC XBRL로 전환 + Insider/FINRA 과거 데이터 확장 5 months ago
news_social_service.py perf: API 성능 개선 Round 2 — 9개 항목 (P6-P14) 5 months ago
price_data_service.py perf: API 성능 개선 Round 2 — 9개 항목 (P6-P14) 5 months ago
real_sec_financial_service.py perf: API 성능 개선 — 로그 분석 기반 6개 항목 수정 5 months ago
screener_service.py feat(screener): add stock screener API with yfinance EquityQuery 5 months ago
sec_data_service.py Initial commit with full project improvements 5 months ago
sec_edgar_service.py Add SEC filings indexing, search, and exhibit extraction (8-K, 6-K, 20-F, 40-F) 5 months ago
sec_filings_service.py fix(sec): exhibit timeout 15초 → 25초 (2단계 fetch 고려) 5 months ago
sec_http_client.py fix(sec): resp.get_encoding() 버그 수정 — 504 직접 원인 5 months ago
universe_service.py fix: universe service - NASDAQ case bug + OOM prevention 5 months ago
yahoo_52week_gainers_service.py Initial commit with full project improvements 5 months ago
yahoo_most_active_service.py Initial commit with full project improvements 5 months ago