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Quidel Corporation (QDEL) — chart, structure and Closelooknet read

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Signals for this name

Every Closelooknet reading that exists for QDEL, from the same nightly bakes the boards use. Research diary readings, not advice.

Weather around the name 3 macro readings: Money Temperature, Factor regime, Sovereign pressure

The weather around this name

Macro readings that apply by membership — the regime, the factor tape, the sector cell, the funding backdrop.

  • Money Temperature Composite 62/100 · S&P 500 fund at 67, bullish alignedEight instruments scored on position, momentum, volume, volatility and fragility — the regime every name trades inside. Temperature lab → 2026-09-25
  • Factor regime Momentum leading — risk appetite buildingMomentum against low volatility (SPMO / SPLV): above its 50-day trend, 99th percentile of the window, +8.4% over 20 sessions. Factor regime → 2026-09-25
  • Sovereign pressure Index 0.61 · up 0.29 over 21 sessionsG7 long-end yields, 10s30s and the slope — the funding weather for every balance sheet on this site. Sovereign pressure → 2026-09-25
How it trades on rate days beta 1.53 to TLT · on the worst bond days it fell more than the market

How it trades on rate days

How QDEL has moved when long-dated Treasury yields rise — measured against TLT, the 20+ year Treasury fund.

  • Beta to long bonds, 1 year 1.53 — moves strongly with bonds for every 1% move in TLT (20+ year Treasuries), Quidel Corporation moved 1.53% on average · correlation 0.16 · higher than 97% of US names
  • Beta, last 3 months 1.27 less rate-sensitive lately than over the year
  • On the 10 worst bond days −3.95% on average against −0.74% for the S&P 500 the 10 sessions of the past year in which TLT fell most, i.e. long yields rose most
  • Latest of those days +3.38% TLT −1.29% that day 2026-09-24

Daily total returns from the adjusted price series; a TLT down day is a day long yields rose. Beta = the average move of the name for a 1% move in TLT. Past sensitivity, not a forecast. An investment diary, not a recommendation.

Who it is priced against Medical Devices · United States · 8 names with week and year-to-date

Peer group

Medical Devices · United States

This name carries no Closelooknet score, so its cohort ranks on trend state — distance to the 50- and 200-day averages — never on a score it does not have.

Compared against QDEL on the nightly bakes; the Peers tab ranks the cohort on the Closelooknet scores where it exists.

Company snapshot — Quidel Corporation

QDEL in five paragraphs: what it makes and sells, where it sits in the Closelooknet stack, who it is priced against, why we track it, what we watch. Research diary, not advice.

What it does
QuidelOrtho makes diagnostic instruments and tests used in clinical laboratories, blood banks and point-of-care settings. Its units cover clinical chemistry, immunoassay testing, blood-type and donor screening, rapid point-of-care tests and molecular diagnostics using PCR and other amplification methods. It sells through a direct sales force and a distributor network to hospitals, laboratories, physician offices and retail health settings. It is based in San Diego and operates in North America, Europe and the Middle East.
Where it sits in the stack
QuidelOrtho carries no Rubin or Halo seat, so it sits outside our AI build-out stack; in our universe it belongs to the healthcare diagnostics sleeve, alongside makers of laboratory and point-of-care testing equipment.
Who it is priced against
Our records give no peer group for this name; the comparison the market draws is with Abbott's diagnostics business, which competes across similar laboratory and point-of-care testing lines.
Why Closelooknet tracks it
It is a Russell 1000 constituent; it carries no Closelooknet score yet and no quotes appear against it in our editions, so its coverage in the diary is limited to that index seat.
What the diary watches
Whether the diagnostics business stabilises after its post-pandemic demand decline, and whether integration across its Labs, Transfusion Medicine and Molecular units shows through in steadier results.

Quidel Corporation (QDEL) trades on US exchanges.

Written from the company’s public profile and Closelooknet’s own readings, 2026-09-17. Descriptive, refreshed with the registry; corrections welcome via the imprint. closelook.net is an investment research diary — market structure, index membership and scores are our own readings, not investment advice. Related: index compare · sector dispersion · scanner.

FAQ · from the current data · as of 2026-09-26

Quick answers

What is Quidel Corporation (QDEL)?

Quidel Corporation trades as QDEL on the US exchange (United States) in the Closelooknet research universe, as of the registry build of 2026-09-26.

Is QDEL in a Closelooknet index?

Not currently — Quidel Corporation is tracked in the Closelooknet research universe but is not a constituent of a Closelooknet functional index as of 2026-09-26.

Where does QDEL trade against its moving averages?

Downtrend stack: Trades -23% vs the 50-day and -40.7% vs the 200-day average, 69.2% below the 52-week high and +10.3% off the 52-week low. Computed from daily closes. As of 2026-09-25 — a technical state from the nightly Closelooknet bake, not advice. The Technical tab carries the full row.

How does Quidel Corporation trade when bond yields rise?

Over the past year Quidel Corporation had a beta of 1.53 to TLT, the long-dated Treasury fund — it moves strongly with bonds, higher than 97% of US names. On the 10 sessions in which long bonds fell most it moved −3.95% on average, against −0.74% for the S&P 500. The "How it trades on rate days" block on this page carries the lines.

What does Quidel Corporation do?

QuidelOrtho makes diagnostic instruments and tests used in clinical laboratories, blood banks and point-of-care settings. Its units cover clinical chemistry, immunoassay testing, blood-type and donor screening, rapid point-of-care tests and molecular diagnostics using PCR and other amplification methods. It sells through a direct sales force and a distributor network to hospitals, laboratories, physician offices and retail health settings. Our records give no peer group for this name; the comparison the market draws is with Abbott's diagnostics business, which competes across similar laboratory and point-of-care testing lines.

Where does Quidel Corporation sit in the AI build-out?

QuidelOrtho carries no Rubin or Halo seat, so it sits outside our AI build-out stack; in our universe it belongs to the healthcare diagnostics sleeve, alongside makers of laboratory and point-of-care testing equipment. It is a Russell 1000 constituent; it carries no Closelooknet score yet and no quotes appear against it in our editions, so its coverage in the diary is limited to that index seat.

What does this page show?

A live price chart with SMA overlays and drawing tools for QDEL, performance metrics, index-membership context and the Closelooknet structure read — an investment research diary view, not investment advice.

Related in the Closelooknet universe

then Medical Devices. Scored names rank on their Closelooknet score; names without one rank on trend state — above or below their 50- and 200-day averages — never on a score they do not carry.