Encoder Sensors

Encoder Sensors: Precision and Performance

Encoder sensors are essential components in modern automation and control systems, providing accurate position feedback and movement tracking. Whether you're working with linear or rotary applications, our selection of encoder sensors ensures reliability and precision in your projects.

Why Choose Our Encoder Sensors?

High Accuracy: Our encoders offer unparalleled precision, crucial for applications requiring meticulous movement control.
Diverse Options: From the renowned RENISHAW and HEIDENHAIN to CLAROSTAT and HONEYWELL, we stock a variety of encoder models suitable for different needs.
Robust Design: Built to withstand harsh conditions, our encoder sensors are durable and designed for longevity, ensuring minimal maintenance.
Easier Integration: Most models support various communication protocols, making them versatile and easy to integrate into existing systems.

Featured Products

RENISHAW RGH22 D30F00 ON LINEAR DRIVE RAIL
HEIDENHAIN 403C 078-33 LS 403C D-83301 LINEAR ENCODER AND SCALE
HONEYWELL 510E1A48F209PC ENCODER
TRD-N500-RZWD INCREMENTAL ROTARY ENCODER
CLAROSTAT 600-128-CBL OPTICAL ENCODERS

Optimize your machinery and enhance operational efficiency with our encoder sensors. Browse our collection today to find the perfect component for your specific requirements and experience the difference in precision and performance.

Refine by

No filters applied

Browse by Brand, Price & more Hide Filters Show Filters

BI
LOT OF 3000 BI EN11-VNB1BQ15 ROTARY ENCODER MECHANICAL 20 QUADRATURE (INCREMENTAL) RIGHT ANGLE T207502

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP:

Was:

Now: $1,999.99

1 in stock
HEIDENHAIN
HEIDENHAIN LS 477 ML 470MM 605 379-46 SEALED LINEAR ENCODER T266529

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP: $2,980.00

Was:

Now: $999.99

1 in stock
BI
LOT OF 900 BI EN11-VSM1BF20 ROTARY ENCODER MECHANICAL 20 QUADRATURE (INCREMENTAL) RIGHT ANGLE T207505

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP:

Was:

Now: $999.99

27 in stock
Dynapar
DYNAPAR ISD370100DLD001 2048PPR IM CABLE T246455

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP: $1,542.00

Was:

Now: $925.20

1 in stock
ALLEN BRADLEY
ALLEN BRADLEY 845H-SJDZ24CTYA5 INCREMENTAL ENCODER T233122

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP: $2,112.00

Was:

Now: $844.80

1 in stock
NSD
NSD VLS-12.8PRA14-270SXN ENCODER T260632

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP: $1,980.00

Was:

Now: $792.00

2 in stock
SICK
SICK DFS60I-S4EM00641 INCREMENTAL ENCODERS T204135

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP: $985.08

Was:

Now: $788.06

1 in stock
TE Connectivity
TE CONNECTIVITY PTX101-0010-111-1100 DRAW WIRE DISPLACEMENT LINEAR ENCODER SENSOR T214164

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP:

Was:

Now: $649.99

1 in stock
HEIDENHAIN
HEIDENHAIN D-83301 517 176-03 ENCODER T262400

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP: $1,334.00

Was:

Now: $533.60

1 in stock
HEIDENHAIN
HEIDENHAIN LIDA-47 EXPOSED LINEAR ENCODER T224444

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP: $853.00

Was:

Now: $511.80

1 in stock
MTS
MTS RA-M-0300M-N01-1-C105221 LINEAR ENCODER T188979

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP:

Was:

Now: $499.99

1 in stock
NSD
NSD VLS-256PW128B ENCODER T220458

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP:

Was:

Now: $499.99

1 in stock
TR ELECTRONIC
TR ELECTRONIC LP 38 D-78647 LINEAR ENCODER T265062

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP: $1,923.01

Was:

Now: $499.99

2 in stock
HEIDENHAIN
HEIDENHAIN APE 454 LINEAR ENCODER T146075

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP:

Was:

Now: $499.00

4 in stock
HEIDENHAIN
HEIDENHAIN LIDA 201 LINEAR ENCODER 1440 MM ML T137207

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP:

Was:

Now: $499.00

2 in stock
HEIDENHAIN
HEIDENHAIN LIDA 201/100 215 517 15 LINEAR ENCODER 1440 MM ML T137206

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP:

Was:

Now: $499.00

1 in stock
ANORAD
ANORAD MERS50 L00Z10 DIGITAL ENCODER T200423

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP:

Was:

Now: $424.99

2 in stock
BROWNING
BROWNING CHJP3 CONVEYOR SPEED ENCODER T221307

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP:

Was:

Now: $399.99

1 in stock
HEIDENHAIN
HEIDENHAIN 557 679-05 LINEAR ENCODER 549 MM T163171

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP:

Was:

Now: $399.99

1 in stock
SICK
SICK 1096816 DUV60E-D4KCJZZZS08 INCREMENTAL ENCODER T261373

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP: $620.00

Was:

Now: $372.00

5 in stock
HEIDENHAIN
HEIDENHAIN 403C 078-33 LS 403C D-83301 LINEAR ENCODER AND SCALE T78056

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP:

Was:

Now: $350.00

1 in stock
HEIDENHAIN
HEIDENHAIN 403C 078-33 LS 403C D-83301 LINEAR ENCODER AND SCALE T78057

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP:

Was:

Now: $350.00

1 in stock
HEIDENHAIN
HEIDENHAIN LS 403C 310 724-06 D-83301 LINEAR ENCODER SCALE T76672

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP:

Was:

Now: $350.00

1 in stock
HEIDENHAIN
HEIDENHAIN LS 403C 310 724-20 D-83301 LINEAR ENCODER SCALE T76660

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP:

Was:

Now: $350.00

1 in stock
HEIDENHAIN
HEIDENHAIN LS 403C 310 724-20 D-83301 LINEAR ENCODER SCALE T76671

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP:

Was:

Now: $350.00

1 in stock
HEIDENHAIN
HEIDENHAIN LS 405 D-83301 LINEAR ENCODER SCALE T125846

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP:

Was:

Now: $350.00

1 in stock
ANORAD
ANORAD 800322 MERS50 L00Z10 DIGITAL ENCODER 0.5 UM TK110

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP:

Was:

Now: $299.99

1 in stock
Dynapar
DYNAPAR HS35204843432 3/8 DIF BIDIR ENCODER 5-26V DIF LD 10P T159591

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP:

Was:

Now: $299.99

1 in stock
FESTO
FESTO MLO-POT-225-TLF DISPLACEMENT ENCODER T189595

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP:

Was:

Now: $299.99

1 in stock
Macro Sensors
MACRO SENSORS VRT-1250-5000-0210 LINEAR ENCODER T212809

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP:

Was:

Now: $299.99

1 in stock
Renishaw
RENISHAW RGH41X10F05A ENCODER T211322

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP:

Was:

Now: $299.99

1 in stock
HEIDENHAIN
HEIDENHAIN EQN 1125 512 637 124 662 G ENCODER T214173

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP:

Was:

Now: $295.87

1 in stock
Sentech
SENTECH 12GST3W-7000X LINEAR ENCODER T213064

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP:

Was:

Now: $249.99

1 in stock
TEMPSONICS
TEMPSONICS RHT0065UD601V01 LINEAR POSITION SENSOR T213302

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP:

Was:

Now: $249.99

2 in stock
Kubler
KUBLER T85825111118400 ENCODER T221179

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP: $576.00

Was:

Now: $230.40

6 in stock
PEPPERL+FUCHS
PEPPERL-FUCHS RHI58N-OBAK1R61N-01000 125325 ROTARY ENCODERS INCREMENTAL STANDARD-( RHI58N-0BAK1R61N-01000) T203423

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP: $265.00

Was:

Now: $212.00

2 in stock
MITSUBISHI
MITSUBISHI MR-JHSCBL ENCODER/RESOLVER CABLE T229383

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP: $350.00

Was:

Now: $210.00

4 in stock
HEIDENHAIN
HEIDENHAIN 233 039 01 D-83301 LINEAR ENCODER SCANNER T218473

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP: $515.00

Was:

Now: $206.00

2 in stock
HEIDENHAIN
HEIDENHAIN LIDA 19/100 LINEAR READER HEAD ENCODER SENSOR T250370

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP: $515.00

Was:

Now: $206.00

1 in stock
MICROE
MICROE M1507H-40 OPTICAL ENCODER T188772

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP:

Was:

Now: $200.00

9 in stock
Absocoder
ABSOCODER VLS-256PW128A 16919 LINEAR ABSOLUTE POSITION SENSOR T172309

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP:

Was:

Now: $199.99

1 in stock
HEIDENHAIN
HEIDENHAIN 297 810-57 7 937 941 F AE LS 403 297 078-31 C LINEAR ENCODER T182140

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP:

Was:

Now: $199.99

1 in stock
HEIDENHAIN
HEIDENHAIN D-83301 334 755-59 4318300 LINEAR ENCODER T182139

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP:

Was:

Now: $199.99

1 in stock
HOERBIGER ORIGA
HOERBIGER ORIGA D-70794 4650 ENCODER T213067

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP:

Was:

Now: $199.99

1 in stock
JENA
JENA LIA22-M431-OZ/40 LINEAR ENCODER HEAD T188660

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP:

Was:

Now: $199.99

1 in stock
MEAS
MEAS G-MRED-110 ED-34 SERIES ROTARY ENCODER SENSORS T205698

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP:

Was:

Now: $199.99

1 in stock
Renishaw
RENISHAW RGH22 D30F00 ON LINEAR DRIVE RAIL T22438

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP:

Was:

Now: $199.99

1 in stock
Renishaw
RENISHAW RGH22 X05F00 LINEAR ENCODER READERS T152390

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP:

Was:

Now: $199.99

2 in stock
Renishaw
RENISHAW RGH22 Z10D00 LINEAR ENCODER ASSEMBLY T29510

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP:

Was:

Now: $199.99

1 in stock
RSF
RSF 25.0S-2M T11 OPEN LINEAR ENCODER T219018

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP:

Was:

Now: $199.99

1 in stock
RSF
RSF 25.0S-2M V5 OPEN LINEAR ENCODER T219020

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP:

Was:

Now: $199.99

1 in stock
RSF
RSF 25.0S-2M V7 OPEN LINEAR ENCODER T219019

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP:

Was:

Now: $199.99

1 in stock
VISCOM
VISCOM 173.107.B.34 ENCODER T163180

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP:

Was:

Now: $199.99

1 in stock
HEIDENHAIN
HEIDENHAIN 384884-P5 SCANNING HEAD WITH D-83301 ENCODER T124579

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP:

Was:

Now: $199.00

4 in stock
HEIDENHAIN
HEIDENHAIN EXE 610C 263 383 01 INTERPOLATION BOX ENCODER T217792

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP: $462.00

Was:

Now: $184.80

4 in stock
SICK
SICK DUS60E-TKKCAZZZS02 1096813 INCREMENTAL ENCODER T261372

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP: $308.00

Was:

Now: $184.80

8 in stock
$CARDKEY 11-0665-01 STI-C21U ENCODER\RESOLVER For Sale$

CARDKEY
CARDKEY 11-0665-01 STI-C21U ENCODER\RESOLVER T228400

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP: $270.00

Was:

Now: $162.00

2 in stock
HEIDENHAIN
HEIDENHAIN 311 831-35 D-83301 ENCODER KIT T214575

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP:

Was:

Now: $158.40

3 in stock
ESF ELEKTRONIK
ESF ELEKTRONIK MS20.04-0M LINEAR ENCODER T200079

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP:

Was:

Now: $149.99

1 in stock
MEG-TEK
MEG-TEK 1660000 LINEAR ENCODER T160915

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP:

Was:

Now: $149.99

1 in stock
RSF Elektronik
RSF ELEKTRONIK 44 837 994 LINEAR ENCODER MS 60.75-3 GK T189254

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP:

Was:

Now: $149.99

1 in stock
STEGMANN
STEGMANN DG 600 05 560501500500 ENCODERS T211438

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP:

Was:

Now: $149.99

1 in stock
Photocraft
PHOTOCRAFT RH-P144AJ/8-30 PROGRAMMABLE WHEELED ENCODER PPI-PROTECTED OUTPUT T151029

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP:

Was:

Now: $149.00

1 in stock
HEIDENHAIN
HEIDENHAIN ROD42050001-03 ENCODER T233972

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP: $317.00

Was:

Now: $126.80

1 in stock
Nemicom
NEMICOM HES-2048-2MD ROTARY ENCODER T171789

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP:

Was:

Now: $124.99

3 in stock
Nemicon
NEMICON HES-2048-2MD ENCODER T200399

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP:

Was:

Now: $124.99

15 in stock
NIDEC
NIDEC HES-2048-2MD NEMICON ROTARY ENCODER T125532

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP:

Was:

Now: $124.99

1 in stock
Nidec Nemicon
NIDEC NEMICON HES-2048-2MD ROTARY ENCODER T173906

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP:

Was:

Now: $124.99

2 in stock
HEIDENHAIN
HEIDENHAIN ROD-529/2010.05000 ENCODER T223844

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP: $288.00

Was:

Now: $115.20

1 in stock
HEIDENHAIN
HEIDENHAIN LIF 17R LINEAR ENCODER T124465

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP:

Was:

Now: $115.00

2 in stock
SEQUENTIAL INFO SYS
SEQUENTIAL INFO SYS 1AOD/601-1B-A-4-C-6-A2-0 N3601 ENCODER SHAFT ANGLE T222302

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP: $182.00

Was:

Now: $109.20

1 in stock
Weed Instrument
WEED INSTRUMENT 1AOD/601-1B-A-4-C-6-A2-0 ENCODER SHAFT ANGLE T217620

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP:

Was:

Now: $109.20

1 in stock
Weed Instrument
WEED INSTRUMENT 1AOD/601-1B-A-4-C-6-A2-0 ENCODER SHAFT ANGLE T217628

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP:

Was:

Now: $109.20

1 in stock
Numerik Jena
NUMERIK JENA LIA20-LZ01-KO NAS LINEAR ENCODER T207001

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP: $360.00

Was:

Now: $108.00

1 in stock
HEIDENHAIN
HEIDENHAIN LIDA 47 369 429-15 LINEAR ENCODER T180471

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP: $169.00

Was:

Now: $100.00

1 in stock
HEIDENHAIN
HEIDENHAIN LIDA 47 636 872-15 LINEAR ENCODER T180470

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP: $169.00

Was:

Now: $100.00

2 in stock
Avago Technologies
LOT OF 3 AVAGO HEDS-5500-E06 OPTICAL ENCODER T264422

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP:

Was:

Now: $100.00

1 in stock
BAUMER
BAUMER MIR10-S0.SE.064N.A/3000 3.500 330 ENCODER T252265

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP:

Was:

Now: $99.99

1 in stock
Efka
EFKA IPG001Y2 INDUSTRIAL ENCODER T266818

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP:

Was:

Now: $99.99

1 in stock
MICROE
MICROE M1507H-40 T181895

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP:

Was:

Now: $99.99

6 in stock
Renishaw
RENISHAW RGH24Z15A00A COMPACT OPTICAL LINEAR ENCODER T269029

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP:

Was:

Now: $99.99

2 in stock
Renishaw
RENISHAW RGH41X30F05A LINEAR ENCODER T185121

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP:

Was:

Now: $99.99

2 in stock
TURCK
TURCK T5.2400.1422.1000 K180704 ENCODERS T229005

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP: $172.00

Was:

Now: $99.99

1 in stock
HEIDENHAIN
HEIDENHAIN LIDA 47 369 429-15 LINEAR ENCODER T131634

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP:

Was:

Now: $99.00

2 in stock
RSF Elektronik
RSF ELEKTRONIK MSA6708 PITCH ENCODE HEAD 520MM T125538

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP:

Was:

Now: $99.00

1 in stock
Numerik Jena
NUMERIK JENA LIA20-LZ01-KO LINEAR ENCODER T181507

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP:

Was:

Now: $89.99

1 in stock
HONEYWELL
HONEYWELL 600-128-CBL ENCODER/RESOLVER T225309

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP: $146.00

Was:

Now: $87.60

22 in stock
RSF Elektronik
RSF ELEKTRONIK MSA6707 PITCH ENCODE HEAD 420MM T125537

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP:

Was:

Now: $85.00

1 in stock
Encoder Products
ENCODER PRODUCTS 260-N-R-02-H-0500-Q-HV-1-S-SF-2-N SPARE ENCODER 500 PULSE PER REVOLUTION FOR USE ON SPEED/LOAD CHARGER T161757

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP:

Was:

Now: $79.99

1 in stock
Renishaw
RENISHAW RGH22 Z20D00 ENCODER SYSTEM T151296

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP:

Was:

Now: $79.99

1 in stock
Renishaw
RENISHAW RGH22 Z20D00 ENCODER SYSTEM T151297

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP:

Was:

Now: $79.99

1 in stock
Renishaw
RENISHAW RGH24YOOZ38A OPTICAL LINEAR ENCODER T162712

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP:

Was:

Now: $79.99

1 in stock
Renishaw
RENISHAW RGH24Z00Z01A LINEAR ENCODER T162940

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP:

Was:

Now: $79.99

1 in stock
Renishaw
RENISHAW RGH24Z00Z01A OPTICAL LINEAR ENCODER T162714

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP:

Was:

Now: $79.99

1 in stock
Renishaw
RENISHAW RGH25F30J00A OPTICAL INCREMENTAL LINEAR ENCODER READHEAD 15-PIN D-SUB T163410

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP:

Was:

Now: $79.99

1 in stock
MITSUBISHI
MITSUBISHI MR-JHSCBL5M-H ENCODER CABLE T223832

MSRP:

Was:

Now: (Inc. Texas Sales Tax)

MSRP: $132.00

Was:

Now: $79.20

1 in stock