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Fidelity Select Biotechnology Portfolio (FBIOX) Holdings

Mutual Fund · Currency in USD · Last updated Jul 14, 2026

The Fidelity Select Biotechnology Portfolio Fund (FBIOX) primarily invests in common stock, focusing on companies involved in biotechnology research, development, production, and distribution and those benefiting from biotechnology advancements. At least 80% of the assets are invested in these types of companies, both domestically and internationally. Investment decisions are made through a fundamental financial stability analysis, industry position, and market and economic conditions.

FBIOX Top Holdings & Constituents

FBIOX, offered by Fidelity, holds 191 reported positions. Its largest holdings are ABBVIE INC (ABBV) (13.22%), KRYSTAL BIOTECH INC (KRYS) (9.30%), and GILEAD SCIENCES INC (GILD) (8.77%). The 5 biggest positions account for 42.72% of reported assets. The table below lists every reported holding with its portfolio weight and market value in US dollars — open any constituent to research its own performance.

PositionWeightMarket Value
ABBV
ABBVIE INC
13.22%
$707.71M
KRYS
KRYSTAL BIOTECH INC
9.30%
$497.95M
GILD
GILEAD SCIENCES INC
8.77%
$469.19M
AMGN
AMGEN INC
8.34%
$446.21M
ALNY
ALNYLAM PHARMACEUTICALS INC
3.09%
$165.36M

Holdings data comes from the latest SEC Form N-PORT-P filing for this fund, covering the reporting period ended Feb 28, 2026. Market values are reported in US dollars, and each weight represents the position's share of reported fund assets. Cash, derivatives, and rounding can mean displayed weights do not total 100%. Funds rebalance and file on a schedule, so this page may not reflect intraday or post-filing changes.